diff options
Diffstat (limited to 'CHANGES')
| -rw-r--r-- | CHANGES | 123 |
1 files changed, 98 insertions, 25 deletions
@@ -1,22 +1,92 @@ Changes from 8.8.2 to 8.9+beta1 =============================== +Tactics + +- Added toplevel goal selector ! which expects a single focused goal. + Use with Set Default Goal Selector to force focusing before tactics + are called. + +- The undocumented "nameless" forms `fix N`, `cofix` that were + deprecated in 8.8 have been removed from LTAC's syntax; please use + `fix ident N/cofix ident` to explicitely name the (co)fixpoint + hypothesis to be introduced. + +- Introduction tactics "intro"/"intros" on a goal which is an + existential variable now force a refinement of the goal into a + dependent product rather than failing. + +- Support for fix/cofix added in Ltac "match" and "lazymatch". + +- Ltac backtraces now include trace information about tactics + called by OCaml-defined tactics. + +- Option "Ltac Debug" now applies also to terms built using Ltac functions. + +- Deprecated the Implicit Tactic family of commands. + +- The `simple apply` tactic now respects the `Opaque` flag when called from + Ltac (`auto` still does not respect it). + Tools - Coq_makefile lets one override or extend the following variables from the command line: COQFLAGS, COQCHKFLAGS, COQDOCFLAGS. + COQFLAGS is now entirely separate from COQLIBS, so in custom Makefiles + $(COQFLAGS) should be replaced by $(COQFLAGS) $(COQLIBS). Vernacular Commands - Removed deprecated commands Arguments Scope and Implicit Arguments (not the option). Use the Arguments command instead. +- Nested proofs may be enabled through the option `Nested Proofs Allowed`. + By default, they are disabled and produce an error. The deprecation + warning which used to occur when using nested proofs has been removed. + +Coq binaries and process model + +- Before 8.9, Coq distributed a single `coqtop` binary and a set of + dynamically loadable plugins that used to take over the main loop + for tasks such as IDE language server or parallel proof checking. + + These plugins have been turned into full-fledged binaries so each + different process has associated a particular binary now, in + particular `coqidetop` is the CoqIDE language server, and + `coq{proof,tactic,query}worker` are in charge of task-specific and + parallel proof checking. + +Changes from 8.8.0 to 8.8.1 +=========================== + +Kernel + +- Fix a critical bug with cofixpoints and vm_compute/native_compute (#7333). + +Notations + +- Fixed unexpected collision between only-parsing and only-printing + notations (issue #7462). + +Changes from 8.8+beta1 to 8.8.0 +=============================== + +Tools + +- Asynchronous proof delegation policy was fixed. Since version 8.7 + Coq was ignoring previous runs and the -async-proofs-delegation-threshold + option did not have the expected behavior. Tactic language -- Support for fix/cofix added in Ltac "match" and "lazymatch". +- The undocumented "nameless" forms `fix N`, `cofix` have been + deprecated; please use `fix ident N /cofix ident` to explicitely + name the (co)fixpoint hypothesis to be introduced. -- Ltac backtraces now contain include trace information about tactics - called by OCaml-defined tactics. +Documentation + +- The reference manual is now fully ported to Sphinx. + +Other small deprecations and bug fixes. Changes from 8.7.2 to 8.8+beta1 =============================== @@ -60,7 +130,7 @@ Tactics profiling, and "Set NativeCompute Profile Filename" customizes the profile filename. - The tactic "omega" is now aware of the bodies of context variables - such as "x := 5 : Z" (see BZ#148). This could be disabled via + such as "x := 5 : Z" (see #1362). This could be disabled via Unset Omega UseLocalDefs. - The tactic "romega" is also aware now of the bodies of context variables. - The tactic "zify" resp. "omega with N" is now aware of N.pred. @@ -84,6 +154,7 @@ Tactics of the execution. - `vm_compute` now supports existential variables. - Calls to `shelve` and `give_up` within calls to tactic `refine` now working. +- Deprecated tactic `appcontext` was removed. Focusing @@ -187,6 +258,7 @@ Options + `Refolding Reduction` + `Standard Proposition Elimination` + + `Dependent Propositions Elimination` + `Discriminate Introduction` + `Shrink Abstract` + `Tactic Pattern Unification` @@ -194,6 +266,7 @@ Options + `Injection L2R Pattern Order` + `Record Elimination Schemes` + `Match Strict` + + `Tactic Compat Context` + `Typeclasses Legacy Resolution` + `Typeclasses Module Eta` + `Typeclass Resolution After Apply` @@ -242,7 +315,7 @@ Improvements around some error messages. Many bug fixes including two important ones: -- BZ#5730: CoqIDE becomes unresponsive on file open. +- Bug #5730: CoqIDE becomes unresponsive on file open. - coq_makefile: make sure compile flags for Coq and coq_makefile are in sync (in particular, make sure the `-safe-string` option is used to compile plugins). @@ -292,7 +365,7 @@ Tactics which behave like the corresponding variants with no "e" but turn unresolved implicit arguments into existential variables, on the shelf, rather than failing. -- Tactic injection has become more powerful (closes BZ#4890) and its +- Tactic injection has become more powerful (closes bug #4890) and its documentation has been updated. - New variants of the `first` and `solve` tacticals that do not rely on parsing rules, meant to define tactic notations. @@ -338,7 +411,7 @@ Standard Library file ChoiceFacts.v. - New lemmas about iff and about orders on positive and Z. - New lemmas on powerRZ. -- Strengthened statement of JMeq_eq_dep (closes BZ#4912). +- Strengthened statement of JMeq_eq_dep (closes bug #4912). - The BigN, BigZ, BigZ libraries are no longer part of the Coq standard library, they are now provided by a separate repository https://github.com/coq/bignums @@ -413,12 +486,12 @@ XML Protocol and internal changes See dev/doc/changes.txt -Many bugfixes including BZ#1859, BZ#2884, BZ#3613, BZ#3943, BZ#3994, -BZ#4250, BZ#4709, BZ#4720, BZ#4824, BZ#4844, BZ#4911, BZ#5026, BZ#5233, -BZ#5275, BZ#5315, BZ#5336, BZ#5360, BZ#5390, BZ#5414, BZ#5417, BZ#5420, -BZ#5439, BZ#5449, BZ#5475, BZ#5476, BZ#5482, BZ#5501, BZ#5507, BZ#5520, -BZ#5523, BZ#5524, BZ#5553, BZ#5577, BZ#5578, BZ#5589, BZ#5597, BZ#5598, -BZ#5607, BZ#5618, BZ#5619, BZ#5620, BZ#5641, BZ#5648, BZ#5651, BZ#5671. +Many bugfixes including #1859, #2884, #3613, #3943, #3994, +#4250, #4709, #4720, #4824, #4844, #4911, #5026, #5233, +#5275, #5315, #5336, #5360, #5390, #5414, #5417, #5420, +#5439, #5449, #5475, #5476, #5482, #5501, #5507, #5520, +#5523, #5524, #5553, #5577, #5578, #5589, #5597, #5598, +#5607, #5618, #5619, #5620, #5641, #5648, #5651, #5671. Many bugfixes on OS X and Windows (now the test-suite passes on these platforms too). @@ -2594,7 +2667,7 @@ Tactics a registered setoid equality before starting to reduce in H. This is unlikely to break any script. Should this happen nonetheless, one can insert manually some "unfold ... in H" before rewriting. -- Fixed various bugs about (setoid) rewrite ... in ... (in particular BZ#1101) +- Fixed various bugs about (setoid) rewrite ... in ... (in particular bug #5941) - "rewrite ... in" now accepts a clause as place where to rewrite instead of juste a simple hypothesis name. For instance: rewrite H in H1,H2 |- * means rewrite H in H1; rewrite H in H2; rewrite H @@ -3171,11 +3244,11 @@ Incompatibilities Bugs - Improved localisation of errors in Syntactic Definitions -- Induction principle creation failure in presence of let-in fixed (BZ#238) -- Inversion bugs fixed (BZ#212 and BZ#220) -- Omega bug related to Set fixed (BZ#180) -- Type-checking inefficiency of nested destructuring let-in fixed (BZ#216) -- Improved handling of let-in during holes resolution phase (BZ#239) +- Induction principle creation failure in presence of let-in fixed (#1459) +- Inversion bugs fixed (#1427 and #1437) +- Omega bug related to Set fixed (#1384) +- Type-checking inefficiency of nested destructuring let-in fixed (#1435) +- Improved handling of let-in during holes resolution phase (#1460) Efficiency @@ -3188,18 +3261,18 @@ Changes from V7.3 to V7.3.1 Bug fixes - Corrupted Field tactic and Match Context tactic construction fixed - - Checking of names already existing in Assert added (BZ#182) - - Invalid argument bug in Exact tactic solved (BZ#183) - - Colliding bound names bug fixed (BZ#202) - - Wrong non-recursivity test for Record fixed (BZ#189) - - Out of memory/seg fault bug related to parametric inductive fixed (BZ#195) + - Checking of names already existing in Assert added (#1386) + - Invalid argument bug in Exact tactic solved (#1387) + - Colliding bound names bug fixed (#1412) + - Wrong non-recursivity test for Record fixed (#1394) + - Out of memory/seg fault bug related to parametric inductive fixed (#1404) - Setoid_replace/Setoid_rewrite bug wrt "==" fixed Misc - Ocaml version >= 3.06 is needed to compile Coq from sources - Simplification of fresh names creation strategy for Assert, Pose and - LetTac (BZ#192) + LetTac (#1402) Changes from V7.2 to V7.3 ========================= |