Coq Projects
Collection
Digesting Coq libraries for AI ingestion.
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8.20.0 | Kernel | Changed | The guard checker now recognizes uniform parameters of a fixpoint and treats their instances as constant over the recursive call | [
"17986",
"16040"
] |
8.20.0 | Kernel | Added | A mechanism to add user-defined rewrite rules to Coq's reduction mechanisms; see chapter :ref:`rewrite_rules` | [
"18038"
] |
8.20.0 | Kernel | Added | Support for primitive strings in terms | [
"18973"
] |
8.20.0 | Specification language, type inference | Changed | Warnings `future-coercion-class-constructor` and `future-coercion-class-field` about `:>` in :cmd:`Class` as errors by default; replace `:>` with `::` for typeclass instances | [
"18590"
] |
8.20.0 | Specification language, type inference | Changed | Mutually-proved theorems with statements in different coinductive types now supported | [
"18743"
] |
8.20.0 | Specification language, type inference | Added | :cmd:`CoFixpoint` supports attributes `bypass_guard`, `clearbody`, `deprecated`, and `warn` | [
"18754"
] |
8.20.0 | Specification language, type inference | Added | `Program Fixpoint` with `measure` or `wf` now supports `where` clauses, `local`/`clearbody` attributes, and non-atomic conclusions | [
"18834"
] |
8.20.0 | Specification language, type inference | Fixed | Anomaly on the absence of remaining obligations of some name is now an error | [
"18873",
"3889"
] |
8.20.0 | Specification language, type inference | Fixed | Universe polymorphic `Program` obligations are now only generalized over effectively occurring universe variables | [
"18915",
"11766",
"11988"
] |
8.20.0 | Specification language, type inference | Fixed | Anomaly `assertion failed` in pattern-matching compilation with :flag:`Program Mode` | [
"18921",
"5777",
"11030",
"11586"
] |
8.20.0 | Specification language, type inference | Fixed | Support for `Program`-style pattern-matching on more than one argument in an inductive family | [
"18929",
"1956",
"5777"
] |
8.20.0 | Specification language, type inference | Fixed | Anomaly with obligations in the binders of a `measure`- or `wf`-based `Program Fixpoint` | [
"18958",
"18920"
] |
8.20.0 | Specification language, type inference | Fixed | Incorrect registration of universe names attached to a primitive polymorphic constant | [
"19100",
"19099"
] |
8.20.0 | Notations | Changed | An :g:`only printing` interpretation of a notation with a specific format no longer changes printing rules of other interpretations | [
"16329",
"16262"
] |
8.20.0 | Notations | Changed | Levels of :cmd:`Reserved Notation` now default to levels of previous notations with longest common prefix | [
"19149"
] |
8.20.0 | Notations | Added | :warn:`closed-notation-not-level-0` and :warn:`postfix-notation-not-level-1` warnings for unusual levels | [
"18588"
] |
8.20.0 | Notations | Added | :warn:`notation-incompatible-prefix` warning when two notation definitions have incompatible prefixes | [
"19049"
] |
8.20.0 | Notations | Fixed | Notations for applied constants with multiple signatures of implicit arguments now correctly insert maximal implicit arguments | [
"18445"
] |
8.20.0 | Notations | Fixed | Support printing notations applied to extra arguments in custom entries, removing an anomaly | [
"18447",
"18342"
] |
8.20.0 | Tactics | Changed | :g:`Z.to_euclidean_division_equations` can now do better reasoning when noticing two equations of the form x = y*q1 + … and x = y*q2 + … | [
"17934"
] |
8.20.0 | Tactics | Changed | The opacity/transparency of primitive projections is now attached to the projections themselves, not the compatibility constants | [
"18327",
"18281"
] |
8.20.0 | Tactics | Changed | Tactic :g:`intro z` on an existential variable goal now defines ?P in a context where the variable is named z | [
"18395"
] |
8.20.0 | Tactics | Changed | Syntactic global references in `using` clauses of :tacn:`auto`-like tactics are now plain references rather than interpreted terms | [
"18909"
] |
8.20.0 | Tactics | Changed | Use Coqlib's :cmd:`Register` for generalized rewriting tactic, making (C)RelationClasses/(C)Morphisms independent of the `rewrite` tactic | [
"19115"
] |
8.20.0 | Tactics | Removed | The `clear` modifier, deprecated since 8.17 | [
"18887"
] |
8.20.0 | Tactics | Removed | The `cutrewrite` tactic, deprecated since Coq 8.5 | [
"19027"
] |
8.20.0 | Tactics | Deprecated | Non-reference hints in `using` clauses of :tacn:`auto`-like tactics | [
"19006"
] |
8.20.0 | Tactics | Deprecated | The `gintuition` tactic | [
"19129"
] |
8.20.0 | Tactics | Deprecated | :tacn:`destauto` | [
"19179"
] |
8.20.0 | Tactics | Added | :g:`Z.to_euclidean_division_equations` can now pose equations of the form x = y*q using :g:`Z.divide` | [
"17927"
] |
8.20.0 | Tactics | Added | Support for :g:`Nat.double` and :g:`Nat.div2` in :g:`zify` and :g:`lia` | [
"18729"
] |
8.20.0 | Tactics | Added | :tacn:`replace` now accepts `->` / `<-` for direction of replacement | [
"19060",
"13480"
] |
8.20.0 | Tactics | Fixed | :tacn:`simpl` systematically reuses the cofixpoint’s name if globally defined | [
"18576",
"4056"
] |
8.20.0 | Tactics | Fixed | Reduction of primitive projections of cofixpoints by :tacn:`simpl` | [
"18577",
"7982"
] |
8.20.0 | Tactics | Fixed | Refolding of reduced global mutual fixpoints/cofixpoints with parameters in :tacn:`cbn` | [
"18601",
"4056"
] |
8.20.0 | Tactics | Fixed | :tacn:`cbn` left unnamable constants when refolding mutual fixpoints/cofixpoints from aliased modules | [
"18616",
"17897"
] |
8.20.0 | Tactics | Fixed | :tacn:`cbv` of primitive projections applied to a tuple now ignores `beta` | [
"18618",
"9086"
] |
8.20.0 | Ltac language | Added | :tacn:`rewrite_strat` now supports fixpoint operator in `@rewstrategy` | [
"18094",
"13702"
] |
8.20.0 | Ltac language | Fixed | :tacn:`rewrite_strat` now works inside module functors | [
"18094",
"18463"
] |
8.20.0 | Ltac2 language | Changed | Recursive let and nonmutable projections of syntactic values are considered syntactic | [
"18411"
] |
8.20.0 | Ltac2 language | Changed | Ltac2 notations are typechecked at declaration time by default | [
"18432",
"17477"
] |
8.20.0 | Ltac2 language | Changed | Argument order for `List.fold_left2` / `List.fold_right2` changed to match OCaml | [
"18706"
] |
8.20.0 | Ltac2 language | Changed | `Import`ing a module with a mutable Ltac2 definition does not undo its mutations | [
"18713"
] |
8.20.0 | Ltac2 language | Changed | The `using` clause argument of :tacn:`auto`-like tactics in Ltac2 now takes a global `reference` | [
"18940"
] |
8.20.0 | Ltac2 language | Deprecated | `Ltac2.Constr.Pretype.Flags.open_constr_flags` | [
"18765"
] |
8.20.0 | Ltac2 language | Added | `fst` and `snd` in `Ltac2.Init` | [
"18370"
] |
8.20.0 | Ltac2 language | Added | `Ltac2.Ltac1.of_preterm` and `to_preterm` | [
"18551"
] |
8.20.0 | Ltac2 language | Added | `of_intro_pattern` and `to_intro_pattern` in `Ltac2.Ltac1` | [
"18558"
] |
8.20.0 | Ltac2 language | Added | Basic APIs in `Ltac2.Ltac1` for more informative errors on value conversion | [
"18558"
] |
8.20.0 | Ltac2 language | Added | APIs `Ltac2.Control.unshelve` and `Ltac2.Notations.unshelve` | [
"18604"
] |
8.20.0 | Ltac2 language | Added | Warning on unused Ltac2 variables | [
"18641"
] |
8.20.0 | Ltac2 language | Added | `Ltac2.Control.numgoals` | [
"18690"
] |
8.20.0 | Ltac2 language | Added | `intropattern` and `intropatterns` notation scopes support views | [
"18757"
] |
8.20.0 | Ltac2 language | Added | Open recursion combinators in `Ltac2.Constr.Unsafe` | [
"18764"
] |
8.20.0 | Ltac2 language | Added | APIs in `Ltac2.Constr.Pretype.Flags` to customize pretyping flags | [
"18765"
] |
8.20.0 | Ltac2 language | Added | :attr:`abstract` attribute for `Ltac2 Type` | [
"18766",
"18656"
] |
8.20.0 | Ltac2 language | Added | APIs in `Ltac2.Message` to interact with the boxing system of the pretty printer | [
"18988"
] |
8.20.0 | Ltac2 language | Added | Flag `Automatic Proposition Inductives`, :flag:`Dependent Proposition Eliminators`, and warning `automatic-prop-lowering` | [
"18989"
] |
8.20.0 | Ltac2 language | Added | `String.sub` | [
"19204"
] |
8.20.0 | Ltac2 language | Fixed | `Ltac2.Control.new_goal` removes the new goal from the shelf/future goals | [
"19141",
"19138"
] |
8.20.0 | SSReflect | Changed | ssreflect no longer relies on the recovery mechanism of the parsing engine | [
"18224"
] |
8.20.0 | SSReflect | Changed | Notations `_.1` and `_.2` are now defined in the prelude at level 1 rather than in `ssrfun` at level 2 | [
"18224"
] |
8.20.0 | SSReflect | Changed | The :tacn:`have` tactic generates a proof term with an opaque constant, as in Coq ≤ 8.16 | [
"18449",
"18017"
] |
8.20.0 | SSReflect | Deprecated | The `fun_scope` notation scope declared in `ssrfun.v` is deprecated; use `function_scope` instead | [
"18374"
] |
8.20.0 | SSReflect | Fixed | Handling of primitive projections in ssrewrite | [
"19213",
"19229"
] |
8.20.0 | Commands and options | Changed | Default reversibility status of most coercions is now truly “non-reversible except record :>` fields” | [
"18705"
] |
8.20.0 | Commands and options | Changed | Focus commands (e.g. `1:{`) and goal selection (e.g. `1: Check`) don’t need Classic (Ltac1) proof mode | [
"18707",
"18351"
] |
8.20.0 | Commands and options | Changed | Inductives declared with `: Type` or no annotation and auto-lowered to `Prop` are not declared template polymorphic | [
"18867"
] |
8.20.0 | Commands and options | Changed | Warning about use of `Let`, `Variable`, `Hypothesis`, and `Context` outside sections is now an error by default | [
"18880"
] |
8.20.0 | Commands and options | Changed | The "fragile-hint-constr" warning is now an error by default | [
"18895"
] |
8.20.0 | Commands and options | Changed | :cmd:`Scheme` automatically registers the resulting schemes in the :cmd:`Register Scheme` database | [
"19016",
"3132"
] |
8.20.0 | Commands and options | Changed | :cmd:`Typeclasses Transparent` / `Opaque` default locality outside sections is now `export` | [
"19069"
] |
8.20.0 | Commands and options | Deprecated | The :cmd:`Cd` command. Use the command line option `-output-directory` or :opt:`Extraction Output Directory` | [
"17403"
] |
8.20.0 | Commands and options | Added | :attr:`warn` attribute, generalizing the deprecation machinery to other forms of comments | [
"18248"
] |
8.20.0 | Commands and options | Added | :cmd:`Register Scheme` to add entries to the scheme database | [
"18299"
] |
8.20.0 | Commands and options | Added | `Print @reference` shows implicit arguments directly on the type | [
"18444"
] |
8.20.0 | Commands and options | Added | `@import_categories` supports category `options` | [
"18536"
] |
8.20.0 | Commands and options | Added | `About`/`Print` now indicate if a name is a projection | [
"18725"
] |
8.20.0 | Commands and options | Added | :cmd:`Hint Projections` sets transparency flags for projections in specified hint DBs | [
"18785"
] |
8.20.0 | Commands and options | Added | :cmd:`Search` now has `is:Fixpoint` and `is:CoFixpoint` | [
"18983"
] |
8.20.0 | Commands and options | Added | :cmd:`Include` can now include module types with `with` clauses | [
"19144"
] |
8.20.0 | Commands and options | Fixed | Missing implicit args after a `->` in `Print`/`About` | [
"18442",
"15020"
] |
8.20.0 | Commands and options | Fixed | :flag:`Cumulativity Weak Constraints` can unify universes to `Set` with :flag:`Universe Minimization ToSet` | [
"18458"
] |
8.20.0 | Commands and options | Fixed | `Search` with `is:Scheme` was searching for inductives with schemes, not the schemes themselves | [
"18537",
"18298"
] |
8.20.0 | Commands and options | Fixed | `Search` now searches in included module types | [
"18662",
"18657"
] |
8.20.0 | Commands and options | Fixed | `Eval` / `Definition := Eval` work without loading the Ltac plugin | [
"18852",
"12948"
] |
8.20.0 | Commands and options | Fixed | :cmd:`Scheme` declares non-recursive schemes for `@scheme_type` | [
"19017",
"10816"
] |
8.20.0 | Commands and options | Fixed | :flag:`Cumulativity Weak Constraints` had its meaning flipped since 8.12 | [
"19201"
] |
8.20.0 | Command-line tools | Changed | SIGINT now produces “user interrupt” instead of aborting, for better messages | [
"18716"
] |
8.20.0 | Command-line tools | Added | `-output-directory dir` sets default output dir for extraction, :cmd:`Redirect`, :cmd:`Print Universes` | [
"17392",
"8649"
] |
8.20.0 | Command-line tools | Fixed | coqdoc links to section variables introduced with `Context` | [
"18527",
"18516"
] |
8.20.0 | CoqIDE | Changed | Find/replace UI improved: margins, icons for found/not found | [
"18523",
"11024"
] |
8.20.0 | CoqIDE | Changed | Default key binding modifier for Navigation menu is now Alt (non-macOS). Undo changed to Ctrl-Z, Next/Previous tab to Ctrl-PgUp/PgDn | [
"18717"
] |
8.20.0 | CoqIDE | Changed | Changing modifiers for View menu only applies to toggle items; View/Show Proof changed to Shift-F2 | [
"18717"
] |
8.20.0 | CoqIDE | Added | Edit/Select All and Navigation/Fully Check menu items | [
"18717",
"16141"
] |
8.20.0 | CoqIDE | Fixed | Opening a file via drag and drop now works correctly | [
"18524",
"3977"
] |
8.20.0 | CoqIDE | Fixed | Incorrect highlight/line numbers for errors/warnings with Unicode; XML protocol updated | [
"19040",
"18682"
] |
8.20.0 | CoqIDE | Fixed | Show tooltips for syntax errors | [
"19153",
"19152"
] |
8.20.0 | Standard library | Changed | Renamed “push” lemmas for List.length to consistent naming: e.g. `app_length`→`length_app` | [
"18564"
] |
8.20.0 | Standard library | Changed | `Coq.CRelationClasses.arrow`, `iffT`, `flip` are now Typeclasses Opaque | [
"18910"
] |
End of preview. Expand
in Dataset Viewer.
Coq Changelog Dataset
Dataset Description
The Coq Changelog Dataset is derived from the official Coq changelogs, focusing on versions 8.17 to 8.20. These versions were specifically chosen as they represent changes that may be underrepresented or entirely absent from current language model training data. By targeting these recent versions, this dataset helps address knowledge gaps in formal methods tools and theorem proving systems.
This dataset provides structured, machine-readable entries for changes in Coq, including additions, fixes, deprecations, and removals, with a focus on practical updates likely to impact users or developers.
Dataset Structure
The dataset includes the following fields:
- version: The Coq version associated with the change (e.g., "8.20.0").
- category: The category of the change (e.g., "Kernel," "Tactics," "Notations").
- type: The type of change (e.g., "Added," "Fixed," "Changed," "Deprecated," "Removed").
- change: The actual modification description (excluding references and author details).
- change_number: A list of all referenced change numbers (e.g., ["12345", "67890"]).
Example Row
{ "version": "8.20.0", "category": "Kernel", "type": "Changed", "change": "The guard checker now recognizes uniform parameters of a fixpoint and treats their instances as constant over the recursive call", "change_number": ["17986", "16040"] }
Source Code
The dataset was created by processing the official Coq changelogs to extract and structure their content into individual, machine-readable entries. While the changelogs cover Coq's entire history, only changes from versions 8.17 through 8.20 are included here. This selection reflects the likelihood that older versions are already well-represented in language models, while recent updates are more prone to omission. Parenthetical references (e.g., "#12345," "fixes #67890") were parsed into the change_number field for indexing and analysis, while the change field retains a clean, descriptive summary of the update.
Usage
This dataset is designed for:
- Formal Methods Research: Understanding the evolution of Coq features and their impact on proof strategies.
- Machine Learning Applications: Training models for Coq version prediction, changelog summarization, or toolchain adaptation.
- Educational Purposes: Teaching Coq users about recent changes or deprecated features in new releases.
License
This dataset is distributed under the LGPL-2.1 license, aligning with the licensing of the Coq project.
Acknowledgments
- Official Coq Repository: https://github.com/coq/coq
- Dataset Maintainer: phanerozoic
- Inspired by: Andreas Florath's Coq Facts, Propositions, and Proofs Dataset
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