diff --git a/CHANGELOG.md b/CHANGELOG.md
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 # Changelog
 
+## [6.0.0](https://github.com/jdx/usage/compare/v5.1.0..v6.0.0) - 2026-08-22
+
+### 🚀 Features
+
+- **(argv)** add a zero-allocation argv parser by [@jdx](https://github.com/jdx) in [#798](https://github.com/jdx/usage/pull/798)
+- **(argv)** emit a usage spec from static metadata by [@jdx](https://github.com/jdx) in [#801](https://github.com/jdx/usage/pull/801)
+- **(argv)** a bound stops a variadic by [@jdx](https://github.com/jdx) in [#826](https://github.com/jdx/usage/pull/826)
+- **(argv)** route a word that names nothing to the default subcommand by [@jdx](https://github.com/jdx) in [#848](https://github.com/jdx/usage/pull/848)
+- **(argv)** join static tables at compile time by [@jdx](https://github.com/jdx) in [#851](https://github.com/jdx/usage/pull/851)
+- **(argv)** render the usage line, byte-identical to usage-lib's by [@jdx](https://github.com/jdx) in [#854](https://github.com/jdx/usage/pull/854)
+- **(argv)** render `-h`, byte-identical to usage-lib's by [@jdx](https://github.com/jdx) in [#860](https://github.com/jdx/usage/pull/860)
+- **(argv)** render `--help` too, byte-identical to usage-lib's by [@jdx](https://github.com/jdx) in [#866](https://github.com/jdx/usage/pull/866)
+- **(argv)** answer `--help` and `-h` by [@jdx](https://github.com/jdx) in [#870](https://github.com/jdx/usage/pull/870)
+- **(argv)** answer the `help` subcommand by [@jdx](https://github.com/jdx) in [#872](https://github.com/jdx/usage/pull/872)
+- **(argv)** split a command line the way the shell that typed it would by [@jdx](https://github.com/jdx) in [#874](https://github.com/jdx/usage/pull/874)
+- **(argv)** read the cursor's position off a real parse by [@jdx](https://github.com/jdx) in [#876](https://github.com/jdx/usage/pull/876)
+- **(argv)** offer what the reference offers, from compiled tables by [@jdx](https://github.com/jdx) in [#877](https://github.com/jdx/usage/pull/877)
+- **(argv)** generate the shell script each shell wants by [@jdx](https://github.com/jdx) in [#887](https://github.com/jdx/usage/pull/887)
+- **(argv)** let a Rust function answer for a value by [@jdx](https://github.com/jdx) in [#888](https://github.com/jdx/usage/pull/888)
+- **(argv)** write the `run=` a declared completer answers by [@jdx](https://github.com/jdx) in [#890](https://github.com/jdx/usage/pull/890)
+- **(argv)** say what went wrong the way clap says it by [@jdx](https://github.com/jdx) in [#895](https://github.com/jdx/usage/pull/895)
+- **(argv)** suggest what was probably meant by [@jdx](https://github.com/jdx) in [#897](https://github.com/jdx/usage/pull/897)
+- **(argv)** answer `--version`, which an adopter loses on the way from clap by [@jdx](https://github.com/jdx) in [#909](https://github.com/jdx/usage/pull/909)
+- **(argv)** a flag whose value may be left off by [@jdx](https://github.com/jdx) in [#969](https://github.com/jdx/usage/pull/969)
+- **(argv)** take flag-like detached values when declared by [@jdx](https://github.com/jdx) in [#1012](https://github.com/jdx/usage/pull/1012)
+- **(bench)** count what a parse allocates, and stop allocating for commands nobody ran by [@jdx](https://github.com/jdx) in [#829](https://github.com/jdx/usage/pull/829)
+- **(cli)** hold a spec's declaration order, the way clap-sort holds a clap CLI's by [@jdx](https://github.com/jdx) in [#915](https://github.com/jdx/usage/pull/915)
+- **(cli)** parse usage's own command line with the parser usage ships by [@jdx](https://github.com/jdx) in [#965](https://github.com/jdx/usage/pull/965)
+- **(cli)** support long version text by [@jdx](https://github.com/jdx) in [#1120](https://github.com/jdx/usage/pull/1120)
+- **(cli)** check that examples still parse, and let the derive declare them by [@jdx](https://github.com/jdx) in [#1168](https://github.com/jdx/usage/pull/1168)
+- **(cli)** add usage explain by [@jdx](https://github.com/jdx) in [#1179](https://github.com/jdx/usage/pull/1179)
+- **(cli)** add usage diff for spec compatibility checking by [@jdx](https://github.com/jdx) in [#1171](https://github.com/jdx/usage/pull/1171)
+- **(complete)** complete config keys and values from the spec by [@jdx](https://github.com/jdx) in [#840](https://github.com/jdx/usage/pull/840)
+- **(complete)** add async runtime overlays by [@jdx](https://github.com/jdx) in [#1060](https://github.com/jdx/usage/pull/1060)
+- **(complete)** support command value hints by [@jdx](https://github.com/jdx) in [#1081](https://github.com/jdx/usage/pull/1081)
+- **(complete)** add shell quoting filter by [@jdx](https://github.com/jdx) in [#1114](https://github.com/jdx/usage/pull/1114)
+- **(complete)** support full value hint vocabulary by [@jdx](https://github.com/jdx) in [#1119](https://github.com/jdx/usage/pull/1119)
+- **(complete)** expand partial path segments by [@jdx](https://github.com/jdx) in [#1128](https://github.com/jdx/usage/pull/1128)
+- **(complete)** support shell alias registration by [@jdx](https://github.com/jdx) in [#1158](https://github.com/jdx/usage/pull/1158)
+- **(complete)** **breaking** remove the vendored bash-completion copy by [@jdx](https://github.com/jdx) in [#1176](https://github.com/jdx/usage/pull/1176)
+- **(complete)** install a completion script where its shell looks for it by [@jdx](https://github.com/jdx) in [#1188](https://github.com/jdx/usage/pull/1188)
+- **(config)** read config files as a layer by [@jdx](https://github.com/jdx) in [#856](https://github.com/jdx/usage/pull/856)
+- **(config)** explain why a setting has the value it has by [@jdx](https://github.com/jdx) in [#857](https://github.com/jdx/usage/pull/857)
+- **(config)** read a resolution as the types a struct holds by [@jdx](https://github.com/jdx) in [#862](https://github.com/jdx/usage/pull/862)
+- **(config)** generate the settings registry from the spec by [@jdx](https://github.com/jdx) in [#864](https://github.com/jdx/usage/pull/864)
+- **(config)** generate the settings struct a CLI reads by [@jdx](https://github.com/jdx) in [#865](https://github.com/jdx/usage/pull/865)
+- **(config)** hold a value to the choices its setting declares by [@jdx](https://github.com/jdx) in [#868](https://github.com/jdx/usage/pull/868)
+- **(config)** carry a setting's choices into the generated registry by [@jdx](https://github.com/jdx) in [#869](https://github.com/jdx/usage/pull/869)
+- **(config)** say what sort of thing each warning is by [@jdx](https://github.com/jdx) in [#873](https://github.com/jdx/usage/pull/873)
+- **(config)** carry the flags a setting declares into its registry by [@jdx](https://github.com/jdx) in [#880](https://github.com/jdx/usage/pull/880)
+- **(config)** read the command line as a layer by [@jdx](https://github.com/jdx) in [#881](https://github.com/jdx/usage/pull/881)
+- **(config)** compare the flags a spec declares with the flags a CLI binds by [@jdx](https://github.com/jdx) in [#884](https://github.com/jdx/usage/pull/884)
+- **(config)** support optional props and aliases by [@jdx](https://github.com/jdx) in [#1134](https://github.com/jdx/usage/pull/1134)
+- **(config)** read YAML config files by [@jdx](https://github.com/jdx) in [#1192](https://github.com/jdx/usage/pull/1192)
+- **(config)** ask for provenance by key, like a value by [@jdx](https://github.com/jdx) in [#1195](https://github.com/jdx/usage/pull/1195)
+- **(config)** a read that keeps every setting that reads by [@jdx](https://github.com/jdx) in [#1196](https://github.com/jdx/usage/pull/1196)
+- **(config)** close Config derive and spec authoring gaps by [@jdx](https://github.com/jdx) in [#1202](https://github.com/jdx/usage/pull/1202)
+- **(config)** gate deprecated settings by explicit CLI version by [@jdx](https://github.com/jdx) in [#1201](https://github.com/jdx/usage/pull/1201)
+- **(derive)** compile a struct into parse tables and a spec by [@jdx](https://github.com/jdx) in [#803](https://github.com/jdx/usage/pull/803)
+- **(derive)** compile subcommands from an enum by [@jdx](https://github.com/jdx) in [#816](https://github.com/jdx/usage/pull/816)
+- **(derive)** check what a parse cannot decide on its own by [@jdx](https://github.com/jdx) in [#817](https://github.com/jdx/usage/pull/817)
+- **(derive)** nest commands to any depth by [@jdx](https://github.com/jdx) in [#818](https://github.com/jdx/usage/pull/818)
+- **(derive)** declare which flags conflict and which require each other by [@jdx](https://github.com/jdx) in [#820](https://github.com/jdx/usage/pull/820)
+- **(derive)** let a flag displace another, the last one given winning by [@jdx](https://github.com/jdx) in [#821](https://github.com/jdx/usage/pull/821)
+- **(derive)** let a command answer to more than one name by [@jdx](https://github.com/jdx) in [#827](https://github.com/jdx/usage/pull/827)
+- **(derive)** let a variant hold its command in a `Box` by [@jdx](https://github.com/jdx) in [#828](https://github.com/jdx/usage/pull/828)
+- **(derive)** let a field be the type it means by [@jdx](https://github.com/jdx) in [#833](https://github.com/jdx/usage/pull/833)
+- **(derive)** declare the words a value may be by [@jdx](https://github.com/jdx) in [#838](https://github.com/jdx/usage/pull/838)
+- **(derive)** hold the bytes a word arrived as by [@jdx](https://github.com/jdx) in [#841](https://github.com/jdx/usage/pull/841)
+- **(derive)** declare the properties mise patches in by hand by [@jdx](https://github.com/jdx) in [#842](https://github.com/jdx/usage/pull/842)
+- **(derive)** accept a value the OS accepts and UTF-8 does not by [@jdx](https://github.com/jdx) in [#844](https://github.com/jdx/usage/pull/844)
+- **(derive)** share declarations between commands with flatten by [@jdx](https://github.com/jdx) in [#852](https://github.com/jdx/usage/pull/852)
+- **(derive)** say three things about a CLI the spec could and the derive could not by [@jdx](https://github.com/jdx) in [#853](https://github.com/jdx/usage/pull/853)
+- **(derive)** answer a completion request from the binary itself by [@jdx](https://github.com/jdx) in [#885](https://github.com/jdx/usage/pull/885)
+- **(derive)** bind a flag to a setting, from what the parser saw by [@jdx](https://github.com/jdx) in [#889](https://github.com/jdx/usage/pull/889)
+- **(derive)** a setting can be declared wherever a flag is by [@jdx](https://github.com/jdx) in [#896](https://github.com/jdx/usage/pull/896)
+- **(derive)** let a field name the function that completes it by [@jdx](https://github.com/jdx) in [#892](https://github.com/jdx/usage/pull/892)
+- **(derive)** say how an argument relates to `--`, all four ways by [@jdx](https://github.com/jdx) in [#900](https://github.com/jdx/usage/pull/900)
+- **(derive)** a default a collecting field can hold by [@jdx](https://github.com/jdx) in [#902](https://github.com/jdx/usage/pull/902)
+- **(derive)** say what a command does to the world by [@jdx](https://github.com/jdx) in [#905](https://github.com/jdx/usage/pull/905)
+- **(derive)** name a value the way clap names it, and say which usage can read the spec by [@jdx](https://github.com/jdx) in [#907](https://github.com/jdx/usage/pull/907)
+- **(derive)** let `parse()` answer a failure the way a program does by [@jdx](https://github.com/jdx) in [#910](https://github.com/jdx/usage/pull/910)
+- **(derive)** read the package's version, and be called what the binary is called by [@jdx](https://github.com/jdx) in [#917](https://github.com/jdx/usage/pull/917)
+- **(derive)** a command that takes nothing can be written that way by [@jdx](https://github.com/jdx) in [#923](https://github.com/jdx/usage/pull/923)
+- **(derive)** say that a command cannot be run alone, which it knew and did not write by [@jdx](https://github.com/jdx) in [#937](https://github.com/jdx/usage/pull/937)
+- **(derive)** keep command aliases on their args by [@jdx](https://github.com/jdx) in [#946](https://github.com/jdx/usage/pull/946)
+- **(derive)** preserve verbatim doc comments by [@jdx](https://github.com/jdx) in [#949](https://github.com/jdx/usage/pull/949)
+- **(derive)** support path value hints by [@jdx](https://github.com/jdx) in [#951](https://github.com/jdx/usage/pull/951)
+- **(derive)** declare a group where the flags are declared by [@jdx](https://github.com/jdx) in [#934](https://github.com/jdx/usage/pull/934)
+- **(derive)** add value-conditional requirements by [@jdx](https://github.com/jdx) in [#1002](https://github.com/jdx/usage/pull/1002)
+- **(derive)** add skip for fields that are not arguments by [@jdx](https://github.com/jdx) in [#1009](https://github.com/jdx/usage/pull/1009)
+- **(derive)** support inline subcommand fields by [@jdx](https://github.com/jdx) in [#1055](https://github.com/jdx/usage/pull/1055)
+- **(derive)** accept runtime metadata expressions by [@jdx](https://github.com/jdx) in [#1056](https://github.com/jdx/usage/pull/1056)
+- **(derive)** accept clap value attributes by [@jdx](https://github.com/jdx) in [#1057](https://github.com/jdx/usage/pull/1057)
+- **(derive)** parse full argv with program name by [@jdx](https://github.com/jdx) in [#1063](https://github.com/jdx/usage/pull/1063)
+- **(derive)** support clap no binary name by [@jdx](https://github.com/jdx) in [#1064](https://github.com/jdx/usage/pull/1064)
+- **(derive)** support unit command structs by [@jdx](https://github.com/jdx) in [#1071](https://github.com/jdx/usage/pull/1071)
+- **(derive)** reuse args across commands by [@jdx](https://github.com/jdx) in [#1076](https://github.com/jdx/usage/pull/1076)
+- **(derive)** support runtime program identity by [@jdx](https://github.com/jdx) in [#1078](https://github.com/jdx/usage/pull/1078)
+- **(derive)** preserve value enum metadata by [@jdx](https://github.com/jdx) in [#1079](https://github.com/jdx/usage/pull/1079)
+- **(derive)** accept clap field spellings by [@jdx](https://github.com/jdx) in [#1086](https://github.com/jdx/usage/pull/1086)
+- **(derive)** preserve hidden flag aliases by [@jdx](https://github.com/jdx) in [#1087](https://github.com/jdx/usage/pull/1087)
+- **(derive)** resolve relationships through flatten by [@jdx](https://github.com/jdx) in [#1088](https://github.com/jdx/usage/pull/1088)
+- **(derive)** support flattened overrides by [@jdx](https://github.com/jdx) in [#1089](https://github.com/jdx/usage/pull/1089)
+- **(derive)** preserve flattened help headings by [@jdx](https://github.com/jdx) in [#1090](https://github.com/jdx/usage/pull/1090)
+- **(derive)** support clap casing policies by [@jdx](https://github.com/jdx) in [#1094](https://github.com/jdx/usage/pull/1094)
+- **(derive)** bind value enums directly by [@jdx](https://github.com/jdx) in [#1110](https://github.com/jdx/usage/pull/1110)
+- **(derive)** accept portable clap field spellings by [@jdx](https://github.com/jdx) in [#1135](https://github.com/jdx/usage/pull/1135)
+- **(derive)** inherit clap command metadata by [@jdx](https://github.com/jdx) in [#1136](https://github.com/jdx/usage/pull/1136)
+- **(derive)** support clap implicit groups by [@jdx](https://github.com/jdx) in [#1137](https://github.com/jdx/usage/pull/1137)
+- **(derive)** generate command dispatch by [@jdx](https://github.com/jdx) in [#1182](https://github.com/jdx/usage/pull/1182)
+- **(derive)** add usage::Config derive for settings declared in code by [@jdx](https://github.com/jdx) in [#1180](https://github.com/jdx/usage/pull/1180)
+- **(derive)** close remaining PLAN gaps for 6.x by [@jdx](https://github.com/jdx) in [#1197](https://github.com/jdx/usage/pull/1197)
+- **(docs)** support granular help visibility by [@jdx](https://github.com/jdx) in [#1107](https://github.com/jdx/usage/pull/1107)
+- **(docs)** customize subcommand presentation by [@jdx](https://github.com/jdx) in [#1108](https://github.com/jdx/usage/pull/1108)
+- **(docs)** color process-facing help by [@jdx](https://github.com/jdx) in [#1111](https://github.com/jdx/usage/pull/1111)
+- **(docs)** support help width controls by [@jdx](https://github.com/jdx) in [#1113](https://github.com/jdx/usage/pull/1113)
+- **(docs)** support next-line help layout by [@jdx](https://github.com/jdx) in [#1117](https://github.com/jdx/usage/pull/1117)
+- **(docs)** support flattened subcommand help by [@jdx](https://github.com/jdx) in [#1118](https://github.com/jdx/usage/pull/1118)
+- **(docs)** support explicit display order by [@jdx](https://github.com/jdx) in [#1121](https://github.com/jdx/usage/pull/1121)
+- **(docs)** group subcommands under help headings by [@jdx](https://github.com/jdx) in [#1153](https://github.com/jdx/usage/pull/1153)
+- **(docs)** add recursive help by [@jdx](https://github.com/jdx) in [#1132](https://github.com/jdx/usage/pull/1132)
+- **(generate)** add json-schema for a CLI's config file by [@jdx](https://github.com/jdx) in [#839](https://github.com/jdx/usage/pull/839)
+- **(go)** emit Go parse tables from a spec, which is what Go has instead of a derive by [@jdx](https://github.com/jdx) in [#931](https://github.com/jdx/usage/pull/931)
+- **(go)** emit the cold table too, so generated code can apply the rules by [@jdx](https://github.com/jdx) in [#959](https://github.com/jdx/usage/pull/959)
+- **(go)** render the usage line, from a third table that costs nothing unused by [@jdx](https://github.com/jdx) in [#964](https://github.com/jdx/usage/pull/964)
+- **(go)** render a failure as something a person can act on by [@jdx](https://github.com/jdx) in [#977](https://github.com/jdx/usage/pull/977)
+- **(go)** generate a struct per command, and the Parse that fills them by [@jdx](https://github.com/jdx) in [#990](https://github.com/jdx/usage/pull/990)
+- **(go)** answer the completion request a shell sends by [@jdx](https://github.com/jdx) in [#1005](https://github.com/jdx/usage/pull/1005)
+- **(go)** enforce value-conditional requirements by [@jdx](https://github.com/jdx) in [#1003](https://github.com/jdx/usage/pull/1003)
+- **(help)** line the flag column up, and give the short page a column at all by [@jdx](https://github.com/jdx) in [#912](https://github.com/jdx/usage/pull/912)
+- **(help)** list the flags a command inherits by [@jdx](https://github.com/jdx) in [#913](https://github.com/jdx/usage/pull/913)
+- **(help)** list `--help` and `--version`, which every page answers by [@jdx](https://github.com/jdx) in [#914](https://github.com/jdx/usage/pull/914)
+- **(lib)** add usage-rs facade by [@jdx](https://github.com/jdx) in [#963](https://github.com/jdx/usage/pull/963)
+- **(lib)** ship usage-rs as the one-crate rust default by [@jdx](https://github.com/jdx) in [#1041](https://github.com/jdx/usage/pull/1041)
+- **(parse)** support inferred prefixes by [@jdx](https://github.com/jdx) in [#1080](https://github.com/jdx/usage/pull/1080)
+- **(parse)** support arg required else help by [@jdx](https://github.com/jdx) in [#1093](https://github.com/jdx/usage/pull/1093)
+- **(parse)** add narrow token boundary controls by [@jdx](https://github.com/jdx) in [#1097](https://github.com/jdx/usage/pull/1097)
+- **(parse)** preserve trailing delimiters by [@jdx](https://github.com/jdx) in [#1098](https://github.com/jdx/usage/pull/1098)
+- **(parse)** add scalar repeat policy by [@jdx](https://github.com/jdx) in [#1102](https://github.com/jdx/usage/pull/1102)
+- **(parse)** add subcommand requirement policy by [@jdx](https://github.com/jdx) in [#1103](https://github.com/jdx/usage/pull/1103)
+- **(parse)** add argument subcommand conflicts by [@jdx](https://github.com/jdx) in [#1104](https://github.com/jdx/usage/pull/1104)
+- **(parse)** add subcommand value precedence by [@jdx](https://github.com/jdx) in [#1105](https://github.com/jdx/usage/pull/1105)
+- **(parse)** support missing optional positionals by [@jdx](https://github.com/jdx) in [#1106](https://github.com/jdx/usage/pull/1106)
+- **(parse)** support optional flag values by [@jdx](https://github.com/jdx) in [#1109](https://github.com/jdx/usage/pull/1109)
+- **(parse)** support custom help and version actions by [@jdx](https://github.com/jdx) in [#1123](https://github.com/jdx/usage/pull/1123)
+- **(parse)** accept explicit boolean values by [@jdx](https://github.com/jdx) in [#1124](https://github.com/jdx/usage/pull/1124)
+- **(parse)** support non-strict choices by [@jdx](https://github.com/jdx) in [#1127](https://github.com/jdx/usage/pull/1127)
+- **(parse)** support ordered environment fallbacks by [@jdx](https://github.com/jdx) in [#1130](https://github.com/jdx/usage/pull/1130)
+- **(parse)** warn at runtime when a deprecated declaration is used by [@jdx](https://github.com/jdx) in [#1186](https://github.com/jdx/usage/pull/1186)
+- **(spec)** support flag relationships by [@jdx](https://github.com/jdx) in [#793](https://github.com/jdx/usage/pull/793)
+- **(spec)** add help_heading, and render it by [@jdx](https://github.com/jdx) in [#802](https://github.com/jdx/usage/pull/802)
+- **(spec)** allow a mount at the top level by [@jdx](https://github.com/jdx) in [#806](https://github.com/jdx/usage/pull/806)
+- **(spec)** make unknown flags configurable, and keep them as values by [@jdx](https://github.com/jdx) in [#810](https://github.com/jdx/usage/pull/810)
+- **(spec)** add `conflicts` to flags by [@jdx](https://github.com/jdx) in [#819](https://github.com/jdx/usage/pull/819)
+- **(spec)** say that one flag needs another, which nothing here could by [@jdx](https://github.com/jdx) in [#925](https://github.com/jdx/usage/pull/925)
+- **(spec)** **breaking** a group, for the rule that no single flag can state by [@jdx](https://github.com/jdx) in [#927](https://github.com/jdx/usage/pull/927)
+- **(spec)** a flag that has to be given on its own by [@jdx](https://github.com/jdx) in [#941](https://github.com/jdx/usage/pull/941)
+- **(spec)** split a value the way clap splits one by [@jdx](https://github.com/jdx) in [#961](https://github.com/jdx/usage/pull/961)
+- **(spec)** add value-conditional requirements by [@jdx](https://github.com/jdx) in [#1001](https://github.com/jdx/usage/pull/1001)
+- **(spec)** refuse a detached value when require_equals is set by [@jdx](https://github.com/jdx) in [#1013](https://github.com/jdx/usage/pull/1013)
+- **(spec)** bind a value when a flag is given with none by [@jdx](https://github.com/jdx) in [#1015](https://github.com/jdx/usage/pull/1015)
+- **(spec)** forward unmatched words as an external subcommand by [@jdx](https://github.com/jdx) in [#1021](https://github.com/jdx/usage/pull/1021)
+- **(spec)** bind a default when another flag is given by [@jdx](https://github.com/jdx) in [#1023](https://github.com/jdx/usage/pull/1023)
+- **(spec)** add portable expression validation by [@jdx](https://github.com/jdx) in [#1037](https://github.com/jdx/usage/pull/1037)
+- **(spec)** add borrowed metadata overlays by [@jdx](https://github.com/jdx) in [#1059](https://github.com/jdx/usage/pull/1059)
+- **(spec)** omit versions from metadata views by [@jdx](https://github.com/jdx) in [#1066](https://github.com/jdx/usage/pull/1066)
+- **(spec)** support positional conflicts and groups by [@jdx](https://github.com/jdx) in [#1085](https://github.com/jdx/usage/pull/1085)
+- **(spec)** add fixed arity value names by [@jdx](https://github.com/jdx) in [#1099](https://github.com/jdx/usage/pull/1099)
+- **(spec)** complete relationship families by [@jdx](https://github.com/jdx) in [#1100](https://github.com/jdx/usage/pull/1100)
+- **(spec)** expose package metadata by [@jdx](https://github.com/jdx) in [#1116](https://github.com/jdx/usage/pull/1116)
+- **(spec)** add deprecation milestones by [@jdx](https://github.com/jdx) in [#1129](https://github.com/jdx/usage/pull/1129)
+- **(spec)** add executable views by [@jdx](https://github.com/jdx) in [#1143](https://github.com/jdx/usage/pull/1143)
+- **(spec)** add deprecated config environment aliases by [@jdx](https://github.com/jdx) in [#1159](https://github.com/jdx/usage/pull/1159)
+- **(spec)** declare source_code_link_template on the derive by [@jdx](https://github.com/jdx) in [#1184](https://github.com/jdx/usage/pull/1184)
+- **(spec)** answer __usage_spec__ from a binary's own tables by [@jdx](https://github.com/jdx) in [#1183](https://github.com/jdx/usage/pull/1183)
+- **(spec)** reusable flag declarations with flagset and use by [@jdx](https://github.com/jdx) in [#1170](https://github.com/jdx/usage/pull/1170)
+- **(spec)** **breaking** lower the derive's flatten into a flagset by [@jdx](https://github.com/jdx) in [#1172](https://github.com/jdx/usage/pull/1172)
+- **(test)** a test harness for an adopter's own suite by [@jdx](https://github.com/jdx) in [#1181](https://github.com/jdx/usage/pull/1181)
+
+### 🐛 Bug Fixes
+
+- **(argv)** stop a repeatable flag from eating a positional by [@jdx](https://github.com/jdx) in [#799](https://github.com/jdx/usage/pull/799)
+- **(argv)** inherit `unknown_flags`, which reached one command out of a tree by [@jdx](https://github.com/jdx) in [#939](https://github.com/jdx/usage/pull/939)
+- **(argv)** reject duplicate flags by [@jdx](https://github.com/jdx) in [#945](https://github.com/jdx/usage/pull/945)
+- **(argv)** show choices when a subcommand is required by [@jdx](https://github.com/jdx) in [#947](https://github.com/jdx/usage/pull/947)
+- **(argv)** a bare `-` binds where it was typed by [@jdx](https://github.com/jdx) in [#986](https://github.com/jdx/usage/pull/986)
+- **(argv)** put zsh's magic comment first, and print fish's candidates as data by [@jdx](https://github.com/jdx) in [#1033](https://github.com/jdx/usage/pull/1033)
+- **(ci)** unblock releases by cutting usage-derive's dev-dependency by [@jdx](https://github.com/jdx) in [#811](https://github.com/jdx/usage/pull/811)
+- **(ci)** check the version the crates promise, and promise one that is true by [@jdx](https://github.com/jdx) in [#918](https://github.com/jdx/usage/pull/918)
+- **(clap)** say what clap would do with an unknown flag by [@jdx](https://github.com/jdx) in [#899](https://github.com/jdx/usage/pull/899)
+- **(cli)** recognize about as root command help by [@jdx](https://github.com/jdx) in [#794](https://github.com/jdx/usage/pull/794)
+- **(complete)** resolve config keys through aliases and renames by [@jdx](https://github.com/jdx) in [#1169](https://github.com/jdx/usage/pull/1169)
+- **(config)** accept case-insensitive boolean words by [@jdx](https://github.com/jdx) in [#1207](https://github.com/jdx/usage/pull/1207)
+- **(derive)** let a `--`-only argument follow a variadic by [@jdx](https://github.com/jdx) in [#823](https://github.com/jdx/usage/pull/823)
+- **(derive)** three more descriptions a spec keeps and the derive lost by [@jdx](https://github.com/jdx) in [#861](https://github.com/jdx/usage/pull/861)
+- **(derive)** name the mistake when `settings` has nothing to collect by [@jdx](https://github.com/jdx) in [#904](https://github.com/jdx/usage/pull/904)
+- **(derive)** emit the tables beside the user's types, not in a module above them by [@jdx](https://github.com/jdx) in [#938](https://github.com/jdx/usage/pull/938)
+- **(derive)** a global flag may be given once per command, not once per line by [@jdx](https://github.com/jdx) in [#991](https://github.com/jdx/usage/pull/991)
+- **(derive)** separate value metadata from parsing by [@jdx](https://github.com/jdx) in [#1054](https://github.com/jdx/usage/pull/1054)
+- **(derive)** make defaulted fields optional in metadata by [@jdx](https://github.com/jdx) in [#1065](https://github.com/jdx/usage/pull/1065)
+- **(derive)** isolate process exit from adopters by [@jdx](https://github.com/jdx) in [#1139](https://github.com/jdx/usage/pull/1139)
+- **(derive)** propagate redeclared global values by [@jdx](https://github.com/jdx) in [#1140](https://github.com/jdx/usage/pull/1140)
+- **(derive)** preserve set-false actions by [@jdx](https://github.com/jdx) in [#1156](https://github.com/jdx/usage/pull/1156)
+- **(derive)** name the count type in standing presence checks by [@jdx](https://github.com/jdx) in [#1205](https://github.com/jdx/usage/pull/1205)
+- **(docs)** link multi-word commands to their real source files by [@jdx](https://github.com/jdx) in [#845](https://github.com/jdx/usage/pull/845)
+- **(docs)** link every command to the file that implements it by [@jdx](https://github.com/jdx) in [#846](https://github.com/jdx/usage/pull/846)
+- **(docs)** keep hidden entries out of help by [@jdx](https://github.com/jdx) in [#859](https://github.com/jdx/usage/pull/859)
+- **(docs)** list visible flag aliases by [@jdx](https://github.com/jdx) in [#1112](https://github.com/jdx/usage/pull/1112)
+- **(help)** a command's page should say what that command does by [@jdx](https://github.com/jdx) in [#911](https://github.com/jdx/usage/pull/911)
+- **(help)** a declared name is not a short form, and blank help is no help by [@jdx](https://github.com/jdx) in [#916](https://github.com/jdx/usage/pull/916)
+- **(help)** render the page for the mount the words reached by [@jdx](https://github.com/jdx) in [#928](https://github.com/jdx/usage/pull/928)
+- **(help)** a description ending in a break adds no blank line by [@jdx](https://github.com/jdx) in [#970](https://github.com/jdx/usage/pull/970)
+- **(lib)** validate every variadic fallback by [@jdx](https://github.com/jdx) in [#1049](https://github.com/jdx/usage/pull/1049)
+- **(parse)** keep every `--` after the first by [@jdx](https://github.com/jdx) in [#809](https://github.com/jdx/usage/pull/809)
+- **(parse)** stop losing a flag that is missing its value by [@jdx](https://github.com/jdx) in [#807](https://github.com/jdx/usage/pull/807)
+- **(parse)** answer the five vectors the reference implementation was failing by [@jdx](https://github.com/jdx) in [#930](https://github.com/jdx/usage/pull/930)
+- **(parse)** **breaking** a command that needs a subcommand says so by [@jdx](https://github.com/jdx) in [#992](https://github.com/jdx/usage/pull/992)
+- **(parse)** keep optional validation lint-clean by [@jdx](https://github.com/jdx) in [#1141](https://github.com/jdx/usage/pull/1141)
+- **(parse)** honor separator after automatic args by [@jdx](https://github.com/jdx) in [#1164](https://github.com/jdx/usage/pull/1164)
+- **(parse)** let a bundle contain a supplied short by [@jdx](https://github.com/jdx) in [#1175](https://github.com/jdx/usage/pull/1175)
+- **(spec)** make the config block survive being written out by [@jdx](https://github.com/jdx) in [#832](https://github.com/jdx/usage/pull/832)
+- **(spec)** apply default_subcommand only at the root by [@jdx](https://github.com/jdx) in [#850](https://github.com/jdx/usage/pull/850)
+- **(spec)** split a clap default by the delimiter clap splits it by by [@jdx](https://github.com/jdx) in [#901](https://github.com/jdx/usage/pull/901)
+- **(spec)** rank a subcommand name above another command's alias by [@jdx](https://github.com/jdx) in [#967](https://github.com/jdx/usage/pull/967)
+- **(spec)** preserve clap value count bounds by [@jdx](https://github.com/jdx) in [#1032](https://github.com/jdx/usage/pull/1032)
+- **(spec)** deduplicate derived completers by [@jdx](https://github.com/jdx) in [#1072](https://github.com/jdx/usage/pull/1072)
+- **(spec)** canonicalize derived kdl by [@jdx](https://github.com/jdx) in [#1095](https://github.com/jdx/usage/pull/1095)
+
+### 🚜 Refactor
+
+- **(deps)** **breaking** stop shipping features and crates nobody uses by [@jdx](https://github.com/jdx) in [#1185](https://github.com/jdx/usage/pull/1185)
+- **(deps)** drop heck from usage-derive by [@jdx](https://github.com/jdx) in [#1187](https://github.com/jdx/usage/pull/1187)
+- **(deps)** take expr-lang without the builtins a spec cannot reach by [@jdx](https://github.com/jdx) in [#1191](https://github.com/jdx/usage/pull/1191)
+
+### 📚 Documentation
+
+- **(plan)** tick landed clap gaps and stop quoting vector counts by [@jdx](https://github.com/jdx) in [#1027](https://github.com/jdx/usage/pull/1027)
+- correct current Rust limitations by [@jdx](https://github.com/jdx) in [#1029](https://github.com/jdx/usage/pull/1029)
+- audit 6.x release documentation by [@jdx](https://github.com/jdx) in [#1084](https://github.com/jdx/usage/pull/1084)
+- add third-party license notices by [@jdx](https://github.com/jdx) in [#1174](https://github.com/jdx/usage/pull/1174)
+
+### ⚡ Performance
+
+- **(derive)** fill the partial through &mut instead of returning it by [@jdx](https://github.com/jdx) in [#980](https://github.com/jdx/usage/pull/980)
+- **(derive)** hold one subcommand's partial, not every subcommand's by [@jdx](https://github.com/jdx) in [#981](https://github.com/jdx/usage/pull/981)
+- **(derive)** drop proc-macro-crate transitive deps by [@jdx](https://github.com/jdx) in [#1042](https://github.com/jdx/usage/pull/1042)
+
+### 🧪 Testing
+
+- **(clap)** preserve choices in external adopter probes by [@jdx](https://github.com/jdx) in [#1157](https://github.com/jdx/usage/pull/1157)
+- **(corpus)** pin what completes where the cursor is by [@jdx](https://github.com/jdx) in [#998](https://github.com/jdx/usage/pull/998)
+- **(derive)** cover verbatim doc compatibility by [@jdx](https://github.com/jdx) in [#1092](https://github.com/jdx/usage/pull/1092)
+- **(docs)** preserve fleet footer spacing by [@jdx](https://github.com/jdx) in [#1142](https://github.com/jdx/usage/pull/1142)
+- **(fleet)** refresh typed adopter fixtures by [@jdx](https://github.com/jdx) in [#1115](https://github.com/jdx/usage/pull/1115)
+- **(parse)** cover mounted command discovery by [@jdx](https://github.com/jdx) in [#1131](https://github.com/jdx/usage/pull/1131)
+- **(parse)** add clap micro-conformance by [@jdx](https://github.com/jdx) in [#1133](https://github.com/jdx/usage/pull/1133)
+- **(spec)** import the argv questions clap's suite answers and ours did not by [@jdx](https://github.com/jdx) in [#926](https://github.com/jdx/usage/pull/926)
+- **(spec)** verify portable parser settings by [@jdx](https://github.com/jdx) in [#1053](https://github.com/jdx/usage/pull/1053)
+
+### 🛡️ Security
+
+- **(config)** resolve settings from layers, with provenance by [@jdx](https://github.com/jdx) in [#849](https://github.com/jdx/usage/pull/849)
+- **(config)** read the environment as a layer by [@jdx](https://github.com/jdx) in [#867](https://github.com/jdx/usage/pull/867)
+- **(config)** give a deprecation notice from anywhere along a rename chain by [@jdx](https://github.com/jdx) in [#893](https://github.com/jdx/usage/pull/893)
+- **(derive)** keep parsed fields live for lints by [@jdx](https://github.com/jdx) in [#1138](https://github.com/jdx/usage/pull/1138)
+- **(docs)** render the config block by [@jdx](https://github.com/jdx) in [#837](https://github.com/jdx/usage/pull/837)
+- **(go)** render the page `-h` prints, matching usage-lib on all 211 of mise's by [@jdx](https://github.com/jdx) in [#974](https://github.com/jdx/usage/pull/974)
+- **(go)** render `--help` too, matching usage-lib on all 211 of mise's long pages by [@jdx](https://github.com/jdx) in [#975](https://github.com/jdx/usage/pull/975)
+- **(parse)** require exact command and flag names by [@jdx](https://github.com/jdx) in [#1096](https://github.com/jdx/usage/pull/1096)
+- **(spec)** the config vocabulary by [@jdx](https://github.com/jdx) in [#835](https://github.com/jdx/usage/pull/835)
+
+### 🔍 Other Changes
+
+- **(docs)** remove stale mise spec fixture by [@jdx](https://github.com/jdx) in [#1200](https://github.com/jdx/usage/pull/1200)
+- **(perf)** say when the clap ratio slides, and record why the derive is stricter by [@jdx](https://github.com/jdx) in [#996](https://github.com/jdx/usage/pull/996)
+- agent/complete files by [@jdx](https://github.com/jdx) in [#883](https://github.com/jdx/usage/pull/883)
+
+### 📦️ Dependency Updates
+
+- update rust crate syn to v3 by [@renovate[bot]](https://github.com/renovate[bot]) in [#808](https://github.com/jdx/usage/pull/808)
+- update rust crate toml to v1 by [@renovate[bot]](https://github.com/renovate[bot]) in [#1016](https://github.com/jdx/usage/pull/1016)
+
 ## [5.1.0](https://github.com/jdx/usage/compare/v5.0.0..v5.1.0) - 2026-08-09
 
 ### 🚀 Features
diff --git a/Cargo.lock b/Cargo.lock
index a30dc91bf..30fbd0e07 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -247,9 +247,9 @@ dependencies = [
 
 [[package]]
 name = "bstr"
-version = "1.13.0"
+version = "1.13.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f7dc094d718f2e1c1559ad110e27eeaae14a5465d3d56dd6dbd793079fbd530"
+checksum = "6bb31b46c14244e20ee9984b11bf5c992b91fb6939fea616e3512c8baecdbe5f"
 dependencies = [
  "memchr",
  "regex-automata",
@@ -276,9 +276,9 @@ checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
 
 [[package]]
 name = "cc"
-version = "1.4.2"
+version = "1.4.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5d262e149917187838d5b42777c8253bcb64500067342904e7d429499a6f277e"
+checksum = "0ad534f4357a5264cce5019c989cf66a4f0dc4e0d1b1d15f8aacec0ff7360273"
 dependencies = [
  "find-msvc-tools",
  "shlex",
@@ -489,12 +489,12 @@ dependencies = [
 
 [[package]]
 name = "darling"
-version = "0.24.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88490bf1b990d87eaaa7ac8aa887f629a08e7359765b4911faf63c3763347d23"
+checksum = "ed17f5901b6630b993ca003def43f2f8ef4014fc13b047b57aad617ff32bc2ec"
 dependencies = [
- "darling_core 0.24.0",
- "darling_macro 0.24.0",
+ "darling_core 0.24.1",
+ "darling_macro 0.24.1",
 ]
 
 [[package]]
@@ -512,9 +512,9 @@ dependencies = [
 
 [[package]]
 name = "darling_core"
-version = "0.24.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "084e274f91c482280130e1e34e0b8d6e66776a060d7b6de7b84289ca778868c4"
+checksum = "6837e2cf7485aaae18f86181d2f0e9a7ed297a025e220aeabf63fdebd3a2ddff"
 dependencies = [
  "ident_case",
  "proc-macro2",
@@ -536,11 +536,11 @@ dependencies = [
 
 [[package]]
 name = "darling_macro"
-version = "0.24.0"
+version = "0.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "68f5792fa0d41cd2325ce0ffa64f0a340eaebd4971a3a0c5e1ffd2cc488a355e"
+checksum = "2ac7135c3ef02b2f7833bbeb1be5ba7f966dcde8a87c6b87f65a778d71a02785"
 dependencies = [
- "darling_core 0.24.0",
+ "darling_core 0.24.1",
  "quote",
  "syn 3.0.3",
 ]
@@ -605,9 +605,9 @@ checksum = "d0881ea181b1df73ff77ffaaf9c7544ecc11e82fba9b5f27b262a3c73a332555"
 
 [[package]]
 name = "either"
-version = "1.17.0"
+version = "1.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9e5e8f6c15a24b9a3ee5efec809ccd006d3b30e8b3bb63c39af737c7f87daa1d"
+checksum = "252afb9ae5eaa683babdc6a068b3f5726eb19e05070c731f9b2a23a7c3e8ed34"
 
 [[package]]
 name = "encode_unicode"
@@ -706,9 +706,9 @@ checksum = "da7c62ceae207dd37ea5b845da6a0696c799f85e97da1ab5b7910be3c1c80223"
 
 [[package]]
 name = "find-msvc-tools"
-version = "0.1.10"
+version = "0.1.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "26b73573e6edcd2af0cdf47bd6cb58f0b3839491263c314eaad1ccf24430e1de"
+checksum = "d45db016d36b838f563236e9193d0ee6ce38f3f68b6c94e914b4929c96bbb890"
 
 [[package]]
 name = "float-cmp"
@@ -727,9 +727,9 @@ checksum = "3f9eec918d3f24069decb9af1554cad7c880e2da24a9afd88aca000531ab82c1"
 
 [[package]]
 name = "futures"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a88cf1f829d945f548cf8fec32c61b1f202b6d93b45848602fc02af4b12ad218"
+checksum = "9a31d2a3fbaaeb2af2368bbdd904aa8e812d3c04a1ee10d3171f52d556e5d0a3"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -742,9 +742,9 @@ dependencies = [
 
 [[package]]
 name = "futures-channel"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "262590f4fe6afeb0bc83be1daa64e52657fe185690a958af7f3ad0e92085c5ae"
+checksum = "b1f9e3d69d39e4862ffed03ed071a76f9a13ba1d9109d355b0f0aa6b15e393c4"
 dependencies = [
  "futures-core",
  "futures-sink",
@@ -752,15 +752,15 @@ dependencies = [
 
 [[package]]
 name = "futures-core"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2cd50c473c80f6d7c3670a752354b8e569b1a7cbfdc0419ec88e5edad85e0dc7"
+checksum = "92d699e522242e69e3003b94ecc1f960f3a5e015aa7c5d7486e65ad01dd94f5e"
 
 [[package]]
 name = "futures-executor"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6754879cc9f2c66f88c6e5c35344bb0bdb0708b0352b1201815667c7eabc7458"
+checksum = "031b47cf1a3c6cc8bc2fc76cd437f521619387907d469316e7c0bc278f1f5432"
 dependencies = [
  "futures-core",
  "futures-task",
@@ -769,38 +769,38 @@ dependencies = [
 
 [[package]]
 name = "futures-io"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4577ecaa3c4f96589d473f679a71b596316f6641bc350038b962a5daf0085d7a"
+checksum = "53c0fa8157de1303bfffdaa1cc2a673bfffb60102f76b0ef4441659124373fed"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d6d3cde68c518367be28956066ddfef33813991b77a55005a69dae04bf3b10b"
+checksum = "9fb9654ba8355388abeb8dcb4fc62f511300867002afc858860463bdd9fe0c44"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn 2.0.119",
+ "syn 3.0.3",
 ]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e34418ac499d6305c2fb5ad0ed2f6ac998c5f8ca209b4510f7f94242c647e307"
+checksum = "1944426bf7d03f1d14f708785e4b33efd750b36d48a157b836b3efc15ede8e1d"
 
 [[package]]
 name = "futures-task"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b231ed28831efb4a61a08580c4bc233ec56bc009f4cd8f52da2c3cb97df0c109"
+checksum = "cd417de3d1d015fc3bfd2b1ea46dfc7bab72ef86f1cc7cc9c78e728b34a6d1fd"
 
 [[package]]
 name = "futures-util"
-version = "0.3.33"
+version = "0.3.34"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a77a90a256fce34da66415271e30f94ee91c57b04b8a2c042d9cf3220179deaa"
+checksum = "0d50a92467f8ba5dd6e3ee5d4bd04d73ab2e4e1c44474a0674821dfce14b79bc"
 dependencies = [
  "futures-channel",
  "futures-core",
@@ -1508,18 +1508,18 @@ dependencies = [
 
 [[package]]
 name = "ref-cast"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "216e8f773d7923bcba9ceb86a86c93cabb3903a11872fc3f138c49630e50b96d"
+checksum = "7e440fb4e4b4147295338efb76001ab9e4efc0e5839df2c47fc5ac2381d365c3"
 dependencies = [
  "ref-cast-impl",
 ]
 
 [[package]]
 name = "ref-cast-impl"
-version = "1.0.26"
+version = "1.0.27"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2c9283685feec7d69af75fb0e858d5e7378f33fe4fc699383b2916ab9273e03c"
+checksum = "92ecd8964f8453721699a1ed72037b0db49ce2f5a5138486ee89bed6f67cdf3a"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1557,13 +1557,14 @@ checksum = "d6f6ff9a378485b298a5286656da665ba74413d36db0979633275d2e708145d4"
 
 [[package]]
 name = "rmcp"
-version = "3.1.2"
+version = "3.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8dddc5b1924b9a59fba420166160ca2c4663a4e01803e52eda33070f56d63c8"
+checksum = "1a15bc53261a9dc37e105df006e4656c598379a8f9581f8950debb130f27a7cf"
 dependencies = [
  "base64 0.23.1",
  "chrono",
  "futures",
+ "indexmap 2.14.0",
  "pastey",
  "pin-project-lite",
  "rmcp-macros",
@@ -1579,11 +1580,11 @@ dependencies = [
 
 [[package]]
 name = "rmcp-macros"
-version = "3.1.2"
+version = "3.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6898e24cd16342b59bfa8a53c2c04b9cf62fc8a2cfea57b9c038b09984bfc521"
+checksum = "a85d45508e9b4ba024fe996c2638799635d75b6dd0ba8f32ccf08f8026f0c780"
 dependencies = [
- "darling 0.24.0",
+ "darling 0.24.1",
  "proc-macro2",
  "quote",
  "serde_json",
@@ -1992,9 +1993,9 @@ dependencies = [
 
 [[package]]
 name = "tera"
-version = "2.1.1"
+version = "2.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "638c0720e7c1f61722366256d369ea46139634e77738735d6d9bb287bbbad35f"
+checksum = "a3e9db9fa0629187ae0a53f3278a99d35f74647f0259c633c9504af85bd0d506"
 dependencies = [
  "serde",
 ]
@@ -2244,11 +2245,11 @@ checksum = "b4ac048d71ede7ee76d585517add45da530660ef4390e49b098733c6e897f254"
 
 [[package]]
 name = "usage-argv"
-version = "5.1.0"
+version = "6.0.0"
 
 [[package]]
 name = "usage-cli"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "assert_cmd",
  "ctor",
@@ -2277,7 +2278,7 @@ dependencies = [
 
 [[package]]
 name = "usage-config"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "serde_json",
  "toml",
@@ -2304,7 +2305,7 @@ dependencies = [
 
 [[package]]
 name = "usage-derive"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "heck",
  "proc-macro2",
@@ -2314,7 +2315,7 @@ dependencies = [
 
 [[package]]
 name = "usage-lib"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "clap",
  "criterion",
@@ -2342,7 +2343,7 @@ dependencies = [
 
 [[package]]
 name = "usage-rs"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "serde",
  "usage-argv",
@@ -2355,14 +2356,14 @@ dependencies = [
 
 [[package]]
 name = "usage-test"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "usage-argv",
 ]
 
 [[package]]
 name = "usage-validation"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "expr-lang",
 ]
@@ -2375,9 +2376,9 @@ checksum = "06abde3611657adf66d383f00b093d7faecc7fa57071cce2578660c9f1010821"
 
 [[package]]
 name = "uuid"
-version = "1.24.0"
+version = "1.24.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf3923a6f5c4c6382e0b653c4117f48d631ea17f38ed86e2a828e6f7412f5239"
+checksum = "2cefc03fd367c0c6d4305de1b312cf00248c4114f4a0418ce6a6af769e3b0bd9"
 dependencies = [
  "getrandom 0.4.3",
  "js-sys",
diff --git a/Cargo.toml b/Cargo.toml
index 3eef60b39..9582a4e20 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,19 +42,19 @@ license = "MIT"
 [workspace.dependencies]
 clap_usage = { path = "./clap_usage", version = "5.0.0" }
 usage-cli = { path = "./cli" }
-usage-argv = { path = "./argv", version = "5.1.0" }
-usage-config = { path = "./config", version = "5.1.0" }
-usage-derive = { path = "./derive", version = "5.1.0" }
+usage-argv = { path = "./argv", version = "6.0.0" }
+usage-config = { path = "./config", version = "6.0.0" }
+usage-derive = { path = "./derive", version = "6.0.0" }
 # No features, and defaults off. A feature named here is inherited by every member that writes
 # `workspace = true` and inlines into their published manifests — so `clap` and `validation`
 # reached members that use neither, one of them an adopter's build script. Defaults
 # are off rather than absent because cargo *ignores* a member's `default-features = false` unless
 # the workspace declaration sets it too, and warns that it may become a hard error. Members name
 # what they need, `docs` included.
-usage-lib = { path = "./lib", version = "5.1.0", default-features = false }
-usage-rs = { path = "./usage-rs", version = "5.1.0" }
-usage-test = { path = "./test", version = "5.1.0" }
-usage-validation = { path = "./validation", version = "5.1.0" }
+usage-lib = { path = "./lib", version = "6.0.0", default-features = false }
+usage-rs = { path = "./usage-rs", version = "6.0.0" }
+usage-test = { path = "./test", version = "6.0.0" }
+usage-validation = { path = "./validation", version = "6.0.0" }
 
 [workspace.metadata.release]
 allow-branch = ["main"]
diff --git a/argv/Cargo.toml b/argv/Cargo.toml
index 62ce1c96f..6477b8cad 100644
--- a/argv/Cargo.toml
+++ b/argv/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-argv"
 description = "Zero-allocation argv parser for usage specs"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }
diff --git a/aube-lock.yaml b/aube-lock.yaml
index 90b3493ff..d592c09ef 100644
--- a/aube-lock.yaml
+++ b/aube-lock.yaml
@@ -14,10 +14,8 @@ time:
   '@withfig/autocomplete@2.692.3': 2025-05-05T17:15:37.900Z
   '@withfig/eslint-plugin-fig-linter@1.4.1': 2023-02-05T19:39:17.032Z
   eslint-plugin-compat@4.2.0: 2023-08-28T22:14:26.062Z
-  eslint@10.8.1: 2026-08-07T20:21:24.770Z
   postcss@8.5.26: 2026-08-06T08:33:00.043Z
   semver@7.8.5: 2026-06-19T18:32:48.972Z
-  typescript@7.0.2: 2026-07-08T15:55:18.431Z
   vitepress@1.6.4: 2025-08-05T13:40:31.197Z
 
 importers:
@@ -26,31 +24,31 @@ importers:
     dependencies:
       '@typescript-eslint/eslint-plugin':
         specifier: ^7.0.0
-        version: 7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(eslint@10.8.1)
+        version: 7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(eslint@10.9.0)
       '@typescript-eslint/parser':
         specifier: ^7.0.0
-        version: 7.18.0(eslint@10.8.1)
+        version: 7.18.0(eslint@10.9.0)
       '@withfig/eslint-plugin-fig-linter':
         specifier: ^1.4.1
         version: 1.4.1
       eslint-plugin-compat:
         specifier: ^4.2.0
-        version: 4.2.0(eslint@10.8.1)
+        version: 4.2.0(eslint@10.9.0)
       postcss:
         specifier: ^8
         version: 8.5.26
       typescript:
         specifier: '>=4.7.4'
-        version: 7.0.2
+        version: 4.9.5
       vitepress:
         specifier: 1.6.4
         version: 1.6.4(postcss@8.5.26)
     devDependencies:
       '@fig/eslint-config-autocomplete':
         specifier: ^2.0.0
-        version: 2.0.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(eslint@10.8.1))(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(@withfig/eslint-plugin-fig-linter@1.4.1)(eslint@10.8.1)(eslint-plugin-compat@4.2.0(eslint@10.8.1))(typescript@7.0.2)
+        version: 2.0.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(eslint@10.9.0))(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(@withfig/eslint-plugin-fig-linter@1.4.1)(eslint@10.9.0)(eslint-plugin-compat@4.2.0(eslint@10.9.0))(typescript@4.9.5)
       '@tsconfig/node24':
-        specifier: ^24.0.4
+        specifier: ^24.0.5
         version: 24.0.5
       '@withfig/autocomplete':
         specifier: ^2.692.3
@@ -62,8 +60,8 @@ importers:
         specifier: ^1.31.0
         version: 1.31.0
       eslint:
-        specifier: ^10.8.1
-        version: 10.8.1
+        specifier: ^10.9.0
+        version: 10.9.0
       semver:
         specifier: ^7.8.5
         version: 7.8.5
@@ -447,166 +445,6 @@ packages:
     resolution: {integrity: sha512-cDF0/Gf81QpY3xYyJKDV14Zwdmid5+uuENhjH2EqFaF0ni+yAyq/LzMaIJdhNJXZI7uLzwIlA+V7oWoyn6Curg==}
     engines: {node: ^18.18.0 || >=20.0.0}
 
-  '@typescript/typescript-aix-ppc64@7.0.2':
-    resolution: {integrity: sha512-MTKKkWB7p/0E9xi1d1tHtZ5PiLkGEMIq88pK2CubZjOsLtYTLqhgIgi6zepFa+9GHZ6h05NMCkQxGKiPXMxXtQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - aix
-    cpu:
-    - ppc64
-
-  '@typescript/typescript-darwin-arm64@7.0.2':
-    resolution: {integrity: sha512-gowzar9MwS/aRWp6f3a4KUqzRjAZjOsmGNCM6LcTgXum+dBfgsBVMN+AgvOCCbguXyick6LJhpBszxMebJ8syA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - darwin
-    cpu:
-    - arm64
-
-  '@typescript/typescript-darwin-x64@7.0.2':
-    resolution: {integrity: sha512-SZ9xZInqApNlNGc9s0W1VSsktYSOe9cFqNOIqmN1Gs8SmkjKZYFt017G4VwPxASInODuAdbTW7sXiFUf893RgA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - darwin
-    cpu:
-    - x64
-
-  '@typescript/typescript-freebsd-arm64@7.0.2':
-    resolution: {integrity: sha512-W5NH4y/J0plIIS5b2xvTEkU7JFxyqdMAOgf+Ilhl0vHQXKO5dZoxd+C/jEtq56c4F3wk71RB4BMRQ2XdI+bwYQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - freebsd
-    cpu:
-    - arm64
-
-  '@typescript/typescript-freebsd-x64@7.0.2':
-    resolution: {integrity: sha512-UMGDx5sTpzNw3WiPebH7l90IWfJggEd+egHt/q6p7/Cm3zqoV7VxkGXt+3DxPIw8CcmvAB0j3sVVfbhX+M4Tpw==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - freebsd
-    cpu:
-    - x64
-
-  '@typescript/typescript-linux-arm64@7.0.2':
-    resolution: {integrity: sha512-Qh4eU4/y3yDjnfjjyPYihMj5/ODIlmt+Bzu17OI+fiSRDW57QmU5SiN63exPRNJPKUzcc1INa1NXdrJ+MqHjUQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - arm64
-
-  '@typescript/typescript-linux-arm@7.0.2':
-    resolution: {integrity: sha512-gffT3xPz9sR7j/YJExkyPntrI0P2EP9XbOyWzth2/Gs0RstK+90RBcO0ncXoXy/beYll1SXw846Nf2zdnEz0QQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - arm
-
-  '@typescript/typescript-linux-loong64@7.0.2':
-    resolution: {integrity: sha512-uEHck9i8hoAzXPiYRib1O7miOnz23SxIeVl6F4LXox+qov1K35jHcEW6VHKvZI+pyvl7fZEP4MCU5LYvIq1GuQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - loong64
-
-  '@typescript/typescript-linux-mips64el@7.0.2':
-    resolution: {integrity: sha512-R4KvAMnE43W5Qeqb0Ly56O3mWMWIAgsMyz36DCaycd5nbg/9kzm0liw3JocfRqyJY0KPmzFjbswozXyW0DnIYA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - mips64el
-
-  '@typescript/typescript-linux-ppc64@7.0.2':
-    resolution: {integrity: sha512-DORx5b3sd/4S7eayxm4FQv+A7CrkUIGRaHiwI8oiHTAI1fAPWhF4J0vAlkC8biAlHSVVwxMQ3tjZ2/DVbnQiiA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - ppc64
-
-  '@typescript/typescript-linux-riscv64@7.0.2':
-    resolution: {integrity: sha512-wf0jqEDOjrPRnKwYRyyJDRo11KMbvMFrU+q4zqKyChODBzvlkbhNQfKvLxQCcwTpdDaXSHZTVuh0JoCrKCUMHQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - riscv64
-
-  '@typescript/typescript-linux-s390x@7.0.2':
-    resolution: {integrity: sha512-IkwJc3L7yhytWd/ewjyxNDfOmswCm9GWMJT/ue/dU4aZNbwZeYAetq42VyLmsmSjvoX7z74X6ZaYCtzAr0EuGw==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - s390x
-
-  '@typescript/typescript-linux-x64@7.0.2':
-    resolution: {integrity: sha512-EYdf2cNg7rgCWJnxCdJ+F3V39O8ihb37eHAu1LK8oAFizgTQbPOK7zHHXbPt8rX24COqODXeI3sIf0fCXG7H/A==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - linux
-    cpu:
-    - x64
-
-  '@typescript/typescript-netbsd-arm64@7.0.2':
-    resolution: {integrity: sha512-+polYF4MF04aPpO5FTkHran9yUQDSXqy5GiSDKpsll5jy3l3+g9QLhpf39T+ePtefhXLOGrLl0QIjkQP6VnelA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - netbsd
-    cpu:
-    - arm64
-
-  '@typescript/typescript-netbsd-x64@7.0.2':
-    resolution: {integrity: sha512-8YIT0EHM/3dq10ZOVF/A7pc/YSMtbcecct4rWtexrnSCHOPcpC2KTLXfTCR6vDpnSiY12heNb1GiN/wu+T/FyA==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - netbsd
-    cpu:
-    - x64
-
-  '@typescript/typescript-openbsd-arm64@7.0.2':
-    resolution: {integrity: sha512-APT8+ClYnuYm1u9+kgGXoMj2VzWzcymwh2gNSQVySHfkRDGOTVkoWLjCmOQSaO+PoqQ57B0flRp9SA+7GnnkzQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - openbsd
-    cpu:
-    - arm64
-
-  '@typescript/typescript-openbsd-x64@7.0.2':
-    resolution: {integrity: sha512-yX7s+Q0Dln0Dt9tEzZsAjXXR/+ytBM7AlglaqyeMPxQszJ1JhlJdZ6jLA+IzldHtflX81em7lDao1xXu+aRRkg==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - openbsd
-    cpu:
-    - x64
-
-  '@typescript/typescript-sunos-x64@7.0.2':
-    resolution: {integrity: sha512-dLJDGaLZ1D4HPQn62u1n8mBDkJREwMsAkCdkwd4Ieqw+x3TUyTsqY0YiBCtE6H6OzzgGk3iuZ3vFWRS+E8/d1g==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - sunos
-    cpu:
-    - x64
-
-  '@typescript/typescript-win32-arm64@7.0.2':
-    resolution: {integrity: sha512-Gyl1Vy6OsWesLzmq+EP0Fb7b4Nid5232AvcA2SFcdYreldpNtYFFofPjnt62y9hQy7VTaZp65ICJjuAQRaVcIQ==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - win32
-    cpu:
-    - arm64
-
-  '@typescript/typescript-win32-x64@7.0.2':
-    resolution: {integrity: sha512-0BQ3HkAHHlKLSp1qRvf3SUhGpGsDuhB/jgFw75guyqbxJqEaS0Cw/VFO8i2nHglJUzQCRtMMR/IBAKE3ETMC4g==}
-    engines: {node: '>=16.20.0'}
-    os:
-    - win32
-    cpu:
-    - x64
-
   '@ungap/structured-clone@1.3.3':
     resolution: {integrity: sha512-60YRaenCQcVjYEKOcG824+DRGGIQ3VKErcBoAEDJZz5bKIs2ZG+X/H9Nk+Q6EVkwJk5QNApxbrc5QtBSwtrXAg==}
 
@@ -893,8 +731,8 @@ packages:
     resolution: {integrity: sha512-tD40eHxA35h0PEIZNeIjkHoDR4YjjJp34biM0mDvplBe//mB+IHCqHDGV7pxF+7MklTvighcCPPZC7ynWyjdTA==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
 
-  eslint@10.8.1:
-    resolution: {integrity: sha512-wqA7W2jbsC/BnV9Iv1UZpKVFkO1AdNoSmYW8NWG4HNOBbkAMvIqDZ27pI2f07dqn583NcIC44ckjAcOXDL1QbQ==}
+  eslint@10.9.0:
+    resolution: {integrity: sha512-5KeEOJZBfEVA47boFiBsf+6MmmJpffM7qEBg4pLla2e4nlKgdKlqCW0oSLOGsT8Wl5uCGJptLV1bkaiShj90Gw==}
     engines: {node: ^20.19.0 || ^22.13.0 || >=24}
     hasBin: true
     peerDependencies:
@@ -1306,11 +1144,6 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  typescript@7.0.2:
-    resolution: {integrity: sha512-8FYau96o3NKOhbjKi/qNvG/W5jhzxkbdm5sj9AbZ/5T5sWqn3hJgLfGx27sRKZWTvyzCP8dLRBTf5tBTSRVUNA==}
-    engines: {node: '>=16.20.0'}
-    hasBin: true
-
   unist-util-is@6.0.1:
     resolution: {integrity: sha512-LsiILbtBETkDz8I9p1dQ0uyRUWuaQzd/cuEeS1hoRSyW5E5XGmTzlwY1OrNzzakGowI9Dr/I8HVaw4hTtnxy8g==}
 
@@ -1560,9 +1393,9 @@ snapshots:
 
   '@esbuild/linux-x64@0.24.2': {}
 
-  '@eslint-community/eslint-utils@4.10.1(eslint@10.8.1)':
+  '@eslint-community/eslint-utils@4.10.1(eslint@10.9.0)':
     dependencies:
-      eslint: 10.8.1
+      eslint: 10.9.0
       eslint-visitor-keys: 3.4.3
 
   '@eslint-community/regexpp@4.12.2': {}
@@ -1604,15 +1437,15 @@ snapshots:
       prettier: 3.9.6
       ts-morph: 22.0.0
       typescript: 5.9.3
-  ? '@fig/eslint-config-autocomplete@2.0.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(eslint@10.8.1))(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(@withfig/eslint-plugin-fig-linter@1.4.1)(eslint@10.8.1)(eslint-plugin-compat@4.2.0(eslint@10.8.1))(typescript@7.0.2)'
+  ? '@fig/eslint-config-autocomplete@2.0.0(@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(eslint@10.9.0))(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(@withfig/eslint-plugin-fig-linter@1.4.1)(eslint@10.9.0)(eslint-plugin-compat@4.2.0(eslint@10.9.0))(typescript@4.9.5)'
 
   : dependencies:
-      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(eslint@10.8.1)
-      '@typescript-eslint/parser': 7.18.0(eslint@10.8.1)
+      '@typescript-eslint/eslint-plugin': 7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(eslint@10.9.0)
+      '@typescript-eslint/parser': 7.18.0(eslint@10.9.0)
       '@withfig/eslint-plugin-fig-linter': 1.4.1
-      eslint: 10.8.1
-      eslint-plugin-compat: 4.2.0(eslint@10.8.1)
-      typescript: 7.0.2
+      eslint: 10.9.0
+      eslint-plugin-compat: 4.2.0(eslint@10.9.0)
+      typescript: 4.9.5
 
   '@humanfs/core@0.19.2':
     dependencies:
@@ -1734,45 +1567,45 @@ snapshots:
 
   '@types/web-bluetooth@0.0.21': {}
 
-  '@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.8.1))(eslint@10.8.1)':
+  '@typescript-eslint/eslint-plugin@7.18.0(@typescript-eslint/parser@7.18.0(eslint@10.9.0))(eslint@10.9.0)':
     dependencies:
       '@eslint-community/regexpp': 4.12.2
-      '@typescript-eslint/parser': 7.18.0(eslint@10.8.1)
+      '@typescript-eslint/parser': 7.18.0(eslint@10.9.0)
       '@typescript-eslint/scope-manager': 7.18.0
-      '@typescript-eslint/type-utils': 7.18.0(eslint@10.8.1)
-      '@typescript-eslint/utils': 7.18.0(eslint@10.8.1)
+      '@typescript-eslint/type-utils': 7.18.0(eslint@10.9.0)
+      '@typescript-eslint/utils': 7.18.0(eslint@10.9.0)
       '@typescript-eslint/visitor-keys': 7.18.0
-      eslint: 10.8.1
+      eslint: 10.9.0
       graphemer: 1.4.0
       ignore: 5.3.2
       natural-compare: 1.4.0
-      ts-api-utils: 1.4.3(typescript@7.0.2)
+      ts-api-utils: 1.4.3(typescript@4.9.5)
 
-  '@typescript-eslint/parser@7.18.0(eslint@10.8.1)':
+  '@typescript-eslint/parser@7.18.0(eslint@10.9.0)':
     dependencies:
       '@typescript-eslint/scope-manager': 7.18.0
       '@typescript-eslint/types': 7.18.0
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@7.0.2)
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@4.9.5)
       '@typescript-eslint/visitor-keys': 7.18.0
       debug: 4.4.3
-      eslint: 10.8.1
+      eslint: 10.9.0
 
   '@typescript-eslint/scope-manager@7.18.0':
     dependencies:
       '@typescript-eslint/types': 7.18.0
       '@typescript-eslint/visitor-keys': 7.18.0
 
-  '@typescript-eslint/type-utils@7.18.0(eslint@10.8.1)':
+  '@typescript-eslint/type-utils@7.18.0(eslint@10.9.0)':
     dependencies:
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@7.0.2)
-      '@typescript-eslint/utils': 7.18.0(eslint@10.8.1)
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@4.9.5)
+      '@typescript-eslint/utils': 7.18.0(eslint@10.9.0)
       debug: 4.4.3
-      eslint: 10.8.1
-      ts-api-utils: 1.4.3(typescript@7.0.2)
+      eslint: 10.9.0
+      ts-api-utils: 1.4.3(typescript@4.9.5)
 
   '@typescript-eslint/types@7.18.0': {}
 
-  '@typescript-eslint/typescript-estree@7.18.0(typescript@7.0.2)':
+  '@typescript-eslint/typescript-estree@7.18.0(typescript@4.9.5)':
     dependencies:
       '@typescript-eslint/types': 7.18.0
       '@typescript-eslint/visitor-keys': 7.18.0
@@ -1781,67 +1614,27 @@ snapshots:
       is-glob: 4.0.3
       minimatch: 9.0.9
       semver: 7.8.5
-      ts-api-utils: 1.4.3(typescript@7.0.2)
+      ts-api-utils: 1.4.3(typescript@4.9.5)
 
-  '@typescript-eslint/utils@7.18.0(eslint@10.8.1)':
+  '@typescript-eslint/utils@7.18.0(eslint@10.9.0)':
     dependencies:
-      '@eslint-community/eslint-utils': 4.10.1(eslint@10.8.1)
+      '@eslint-community/eslint-utils': 4.10.1(eslint@10.9.0)
       '@typescript-eslint/scope-manager': 7.18.0
       '@typescript-eslint/types': 7.18.0
-      '@typescript-eslint/typescript-estree': 7.18.0(typescript@7.0.2)
-      eslint: 10.8.1
+      '@typescript-eslint/typescript-estree': 7.18.0(typescript@4.9.5)
+      eslint: 10.9.0
 
   '@typescript-eslint/visitor-keys@7.18.0':
     dependencies:
       '@typescript-eslint/types': 7.18.0
       eslint-visitor-keys: 3.4.3
 
-  '@typescript/typescript-aix-ppc64@7.0.2': {}
-
-  '@typescript/typescript-darwin-arm64@7.0.2': {}
-
-  '@typescript/typescript-darwin-x64@7.0.2': {}
-
-  '@typescript/typescript-freebsd-arm64@7.0.2': {}
-
-  '@typescript/typescript-freebsd-x64@7.0.2': {}
-
-  '@typescript/typescript-linux-arm64@7.0.2': {}
-
-  '@typescript/typescript-linux-arm@7.0.2': {}
-
-  '@typescript/typescript-linux-loong64@7.0.2': {}
-
-  '@typescript/typescript-linux-mips64el@7.0.2': {}
-
-  '@typescript/typescript-linux-ppc64@7.0.2': {}
-
-  '@typescript/typescript-linux-riscv64@7.0.2': {}
-
-  '@typescript/typescript-linux-s390x@7.0.2': {}
-
-  '@typescript/typescript-linux-x64@7.0.2': {}
-
-  '@typescript/typescript-netbsd-arm64@7.0.2': {}
-
-  '@typescript/typescript-netbsd-x64@7.0.2': {}
-
-  '@typescript/typescript-openbsd-arm64@7.0.2': {}
-
-  '@typescript/typescript-openbsd-x64@7.0.2': {}
-
-  '@typescript/typescript-sunos-x64@7.0.2': {}
-
-  '@typescript/typescript-win32-arm64@7.0.2': {}
-
-  '@typescript/typescript-win32-x64@7.0.2': {}
-
   '@ungap/structured-clone@1.3.3': {}
 
-  '@vitejs/plugin-vue@5.2.4(vite@5.4.21)(vue@3.5.41(typescript@7.0.2))':
+  '@vitejs/plugin-vue@5.2.4(vite@5.4.21)(vue@3.5.41(typescript@4.9.5))':
     dependencies:
       vite: 5.4.21
-      vue: 3.5.41(typescript@7.0.2)
+      vue: 3.5.41(typescript@4.9.5)
 
   '@vue/compiler-core@3.5.41':
     dependencies:
@@ -1915,25 +1708,25 @@ snapshots:
 
   '@vue/shared@3.5.41': {}
 
-  '@vueuse/core@12.8.2(typescript@7.0.2)':
+  '@vueuse/core@12.8.2(typescript@4.9.5)':
     dependencies:
       '@types/web-bluetooth': 0.0.21
       '@vueuse/metadata': 12.8.2
-      '@vueuse/shared': 12.8.2(typescript@7.0.2)
-      vue: 3.5.41(typescript@7.0.2)
+      '@vueuse/shared': 12.8.2(typescript@4.9.5)
+      vue: 3.5.41(typescript@4.9.5)
 
   '@vueuse/integrations@12.8.2(focus-trap@7.8.0)':
     dependencies:
-      '@vueuse/core': 12.8.2(typescript@7.0.2)
-      '@vueuse/shared': 12.8.2(typescript@7.0.2)
+      '@vueuse/core': 12.8.2(typescript@4.9.5)
+      '@vueuse/shared': 12.8.2(typescript@4.9.5)
       focus-trap: 7.8.0
-      vue: 3.5.41(typescript@7.0.2)
+      vue: 3.5.41(typescript@4.9.5)
 
   '@vueuse/metadata@12.8.2': {}
 
-  '@vueuse/shared@12.8.2(typescript@7.0.2)':
+  '@vueuse/shared@12.8.2(typescript@4.9.5)':
     dependencies:
-      vue: 3.5.41(typescript@7.0.2)
+      vue: 3.5.41(typescript@4.9.5)
 
   '@withfig/autocomplete-tools@2.11.0(esbuild@0.24.2)':
     dependencies:
@@ -2105,13 +1898,13 @@ snapshots:
 
   escape-string-regexp@4.0.0: {}
 
-  eslint-plugin-compat@4.2.0(eslint@10.8.1):
+  eslint-plugin-compat@4.2.0(eslint@10.9.0):
     dependencies:
       '@mdn/browser-compat-data': 5.7.6
       ast-metadata-inferer: 0.8.1
       browserslist: 4.28.8
       caniuse-lite: 1.0.30001809
-      eslint: 10.8.1
+      eslint: 10.9.0
       find-up: 5.0.0
       lodash.memoize: 4.1.2
       semver: 7.8.5
@@ -2127,9 +1920,9 @@ snapshots:
 
   eslint-visitor-keys@5.0.1: {}
 
-  eslint@10.8.1:
+  eslint@10.9.0:
     dependencies:
-      '@eslint-community/eslint-utils': 4.10.1(eslint@10.8.1)
+      '@eslint-community/eslint-utils': 4.10.1(eslint@10.9.0)
       '@eslint-community/regexpp': 4.12.2
       '@eslint/config-array': 0.23.5
       '@eslint/config-helpers': 0.7.0
@@ -2521,9 +2314,9 @@ snapshots:
 
   trim-lines@3.0.1: {}
 
-  ts-api-utils@1.4.3(typescript@7.0.2):
+  ts-api-utils@1.4.3(typescript@4.9.5):
     dependencies:
-      typescript: 7.0.2
+      typescript: 4.9.5
 
   ts-morph@22.0.0:
     dependencies:
@@ -2538,29 +2331,6 @@ snapshots:
 
   typescript@5.9.3: {}
 
-  typescript@7.0.2:
-    optionalDependencies:
-      '@typescript/typescript-aix-ppc64': 7.0.2
-      '@typescript/typescript-darwin-arm64': 7.0.2
-      '@typescript/typescript-darwin-x64': 7.0.2
-      '@typescript/typescript-freebsd-arm64': 7.0.2
-      '@typescript/typescript-freebsd-x64': 7.0.2
-      '@typescript/typescript-linux-arm': 7.0.2
-      '@typescript/typescript-linux-arm64': 7.0.2
-      '@typescript/typescript-linux-loong64': 7.0.2
-      '@typescript/typescript-linux-mips64el': 7.0.2
-      '@typescript/typescript-linux-ppc64': 7.0.2
-      '@typescript/typescript-linux-riscv64': 7.0.2
-      '@typescript/typescript-linux-s390x': 7.0.2
-      '@typescript/typescript-linux-x64': 7.0.2
-      '@typescript/typescript-netbsd-arm64': 7.0.2
-      '@typescript/typescript-netbsd-x64': 7.0.2
-      '@typescript/typescript-openbsd-arm64': 7.0.2
-      '@typescript/typescript-openbsd-x64': 7.0.2
-      '@typescript/typescript-sunos-x64': 7.0.2
-      '@typescript/typescript-win32-arm64': 7.0.2
-      '@typescript/typescript-win32-x64': 7.0.2
-
   unist-util-is@6.0.1:
     dependencies:
       '@types/unist': 3.0.3
@@ -2619,10 +2389,10 @@ snapshots:
       '@shikijs/transformers': 2.5.0
       '@shikijs/types': 2.5.0
       '@types/markdown-it': 14.2.0
-      '@vitejs/plugin-vue': 5.2.4(vite@5.4.21)(vue@3.5.41(typescript@7.0.2))
+      '@vitejs/plugin-vue': 5.2.4(vite@5.4.21)(vue@3.5.41(typescript@4.9.5))
       '@vue/devtools-api': 7.7.10
       '@vue/shared': 3.5.41
-      '@vueuse/core': 12.8.2(typescript@7.0.2)
+      '@vueuse/core': 12.8.2(typescript@4.9.5)
       '@vueuse/integrations': 12.8.2(focus-trap@7.8.0)
       focus-trap: 7.8.0
       mark.js: 8.11.1
@@ -2630,16 +2400,16 @@ snapshots:
       postcss: 8.5.26
       shiki: 2.5.0
       vite: 5.4.21
-      vue: 3.5.41(typescript@7.0.2)
+      vue: 3.5.41(typescript@4.9.5)
 
-  vue@3.5.41(typescript@7.0.2):
+  vue@3.5.41(typescript@4.9.5):
     dependencies:
       '@vue/compiler-dom': 3.5.41
       '@vue/compiler-sfc': 3.5.41
       '@vue/runtime-dom': 3.5.41
       '@vue/server-renderer': 3.5.41
       '@vue/shared': 3.5.41
-      typescript: 7.0.2
+      typescript: 4.9.5
 
   which@2.0.2:
     dependencies:
diff --git a/cli/Cargo.toml b/cli/Cargo.toml
index 59a596e15..464da67c1 100644
--- a/cli/Cargo.toml
+++ b/cli/Cargo.toml
@@ -2,7 +2,7 @@
 name = "usage-cli"
 edition = "2021"
 rust-version = "1.95"
-version = "5.1.0"
+version = "6.0.0"
 description = "CLI for working with usage-based CLIs"
 license = { workspace = true }
 authors = { workspace = true }
diff --git a/cli/usage.usage.kdl b/cli/usage.usage.kdl
index 0221202c7..0e5985dc1 100644
--- a/cli/usage.usage.kdl
+++ b/cli/usage.usage.kdl
@@ -2,7 +2,7 @@
 min_usage_version "4.0"
 name usage
 bin usage
-version "5.1.0"
+version "6.0.0"
 repository "https://github.com/jdx/usage"
 source_code_link_template "{%- set path = path | replace(from='-', to='_') -%}\n{%- if cmd.subcommands | length > 0 -%}\n{%- set path = path ~ \"/mod.rs\" -%}\n{%- elif path in [\"bash\", \"fish\", \"powershell\", \"zsh\"] -%}\n{%- set path = \"shell.rs\" -%}\n{%- else -%}\n{%- set path = path ~ \".rs\" -%}\n{%- endif -%}\nhttps://github.com/jdx/usage/blob/main/cli/src/cli/{{path}}"
 about "CLI for working with usage-based CLIs"
diff --git a/config/Cargo.toml b/config/Cargo.toml
index 76730fd04..9b3743870 100644
--- a/config/Cargo.toml
+++ b/config/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-config"
 description = "Layered configuration resolution for usage specs, with provenance"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }
diff --git a/derive/Cargo.toml b/derive/Cargo.toml
index 1318c7484..35806aab7 100644
--- a/derive/Cargo.toml
+++ b/derive/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-derive"
 description = "Derive macro that compiles a CLI definition into parse tables and a usage spec"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }
diff --git a/docs/cli/reference/commands.json b/docs/cli/reference/commands.json
index 8fe8c989e..16c131a8d 100644
--- a/docs/cli/reference/commands.json
+++ b/docs/cli/reference/commands.json
@@ -1757,7 +1757,7 @@
     "sources": {},
     "files": []
   },
-  "version": "5.1.0",
+  "version": "6.0.0",
   "usage": "Usage: usage <COMMAND>\n       usage --completions <COMPLETIONS>\n       usage --usage-spec",
   "complete": {},
   "source_code_link_template": "{%- set path = path | replace(from='-', to='_') -%}\n{%- if cmd.subcommands | length > 0 -%}\n{%- set path = path ~ \"/mod.rs\" -%}\n{%- elif path in [\"bash\", \"fish\", \"powershell\", \"zsh\"] -%}\n{%- set path = \"shell.rs\" -%}\n{%- else -%}\n{%- set path = path ~ \".rs\" -%}\n{%- endif -%}\nhttps://github.com/jdx/usage/blob/main/cli/src/cli/{{path}}",
diff --git a/docs/cli/reference/index.md b/docs/cli/reference/index.md
index d230312e4..800afb44f 100644
--- a/docs/cli/reference/index.md
+++ b/docs/cli/reference/index.md
@@ -4,7 +4,7 @@
 
 **Usage**: `usage [--completions <COMPLETIONS>] [--usage-spec] <SUBCOMMAND>`
 
-**Version**: 5.1.0
+**Version**: 6.0.0
 
 **Repository**: https://github.com/jdx/usage
 
diff --git a/lib/Cargo.toml b/lib/Cargo.toml
index 5f9948e05..16f37fd1d 100644
--- a/lib/Cargo.toml
+++ b/lib/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-lib"
 edition = "2021"
-version = "5.1.0"
+version = "6.0.0"
 rust-version = "1.95"
 include = [
     "/Cargo.toml",
diff --git a/package.json b/package.json
index 5556d64d9..e5b90781a 100644
--- a/package.json
+++ b/package.json
@@ -34,11 +34,11 @@
   },
   "devDependencies": {
     "@fig/eslint-config-autocomplete": "^2.0.0",
-    "@tsconfig/node24": "^24.0.4",
+    "@tsconfig/node24": "^24.0.5",
     "@withfig/autocomplete": "^2.692.3",
     "@withfig/autocomplete-tools": "^2.11.0",
     "@withfig/autocomplete-types": "^1.31.0",
-    "eslint": "^10.8.1",
+    "eslint": "^10.9.0",
     "semver": "^7.8.5"
   }
 }
diff --git a/test/Cargo.toml b/test/Cargo.toml
index e0654a0af..c7960c0f1 100644
--- a/test/Cargo.toml
+++ b/test/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-test"
 description = "Test helpers for CLIs built with usage"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }
diff --git a/usage-rs/Cargo.toml b/usage-rs/Cargo.toml
index 335796b35..09462e1cd 100644
--- a/usage-rs/Cargo.toml
+++ b/usage-rs/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-rs"
 description = "A compiled CLI parser for Rust, built on usage specs"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }
diff --git a/usage-rs/tests/fixtures/runtime-identity/Cargo.lock b/usage-rs/tests/fixtures/runtime-identity/Cargo.lock
index 5e6fcf7c0..78cb6ae77 100644
--- a/usage-rs/tests/fixtures/runtime-identity/Cargo.lock
+++ b/usage-rs/tests/fixtures/runtime-identity/Cargo.lock
@@ -39,11 +39,11 @@ checksum = "e6e4313cd5fcd3dad5cafa179702e2b244f760991f45397d14d4ebf38247da75"
 
 [[package]]
 name = "usage-argv"
-version = "5.1.0"
+version = "6.0.0"
 
 [[package]]
 name = "usage-derive"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -52,7 +52,7 @@ dependencies = [
 
 [[package]]
 name = "usage-rs"
-version = "5.1.0"
+version = "6.0.0"
 dependencies = [
  "usage-argv",
  "usage-derive",
diff --git a/validation/Cargo.toml b/validation/Cargo.toml
index c09153643..509702cd4 100644
--- a/validation/Cargo.toml
+++ b/validation/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "usage-validation"
 description = "Portable expression validation for usage specs"
-version = "5.1.0"
+version = "6.0.0"
 edition = "2021"
 rust-version = "1.91"
 homepage = { workspace = true }