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chore: begin development cycle for v4.6.0 (#3109)

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Scott Morrison 2023-12-22 09:39:04 +11:00 • committed by GitHub
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48
RELEASES.md
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@ -8,7 +8,10 @@ This file contains work-in-progress notes for the upcoming release, as well as p
Please check the [releases](https://github.com/leanprover/lean4/releases) page for the current status
of each version.
v4.5.0 (development in progress)
v4.6.0 (development in progress)
---------
v4.5.0
---------
* Modify the lexical syntax of string literals to have string gaps, which are escape sequences of the form `"\" newline whitespace*`.
@ -43,6 +46,49 @@ v4.5.0 (development in progress)
* Support snippet edits in LSP `TextEdit`s. See `Lean.Lsp.SnippetString` for more details.
* Deprecations and changes in the widget API.
- `Widget.UserWidgetDefinition` is deprecated in favour of `Widget.Module`. The annotation `@[widget]` is deprecated in favour of `@[widget_module]`. To migrate a definition of type `UserWidgetDefinition`, remove the `name` field and replace the type with `Widget.Module`. Removing the `name` results in a title bar no longer being drawn above your panel widget. To add it back, draw it as part of the component using `<details open=true><summary class='mv2 pointer'>{name}</summary>{rest_of_widget}</details>`. See an example migration [here](https://github.com/leanprover/std4/pull/475/files#diff-857376079661a0c28a53b7ff84701afabbdf529836a6944d106c5294f0e68109R43-R83).
- The new command `show_panel_widgets` allows displaying always-on and locally-on panel widgets.
- `RpcEncodable` widget props can now be stored in the infotree.
- See [RFC 2963](https://github.com/leanprover/lean4/issues/2963) for more details and motivation.
* If no usable lexicographic order can be found automatically for a termination proof, explain why.
See [feat: GuessLex: if no measure is found, explain why](https://github.com/leanprover/lean4/pull/2960).
* Option to print [inferred termination argument](https://github.com/leanprover/lean4/pull/3012).
With `set_option showInferredTerminationBy true` you will get messages like
```
Inferred termination argument:
termination_by
ackermann n m => (sizeOf n, sizeOf m)
```
for automatically generated `termination_by` clauses.
* More detailed error messages for [invalid mutual blocks](https://github.com/leanprover/lean4/pull/2949).
* [Multiple](https://github.com/leanprover/lean4/pull/2923) [improvements](https://github.com/leanprover/lean4/pull/2969) to the output of `simp?` and `simp_all?`.
* Tactics with `withLocation *` [no longer fail](https://github.com/leanprover/lean4/pull/2917) if they close the main goal.
* Implementation of a `test_extern` command for writing tests for `@[extern]` and `@[implemented_by]` functions.
Usage is
```
import Lean.Util.TestExtern
test_extern Nat.add 17 37
```
The head symbol must be the constant with the `@[extern]` or `@[implemented_by]` attribute. The return type must have a `DecidableEq` instance.
Bug fixes for
[#2853](https://github.com/leanprover/lean4/issues/2853), [#2953](https://github.com/leanprover/lean4/issues/2953), [#2966](https://github.com/leanprover/lean4/issues/2966),
[#2971](https://github.com/leanprover/lean4/issues/2971), [#2990](https://github.com/leanprover/lean4/issues/2990), [#3094](https://github.com/leanprover/lean4/issues/3094).
Bug fix for [eager evaluation of default value](https://github.com/leanprover/lean4/pull/3043) in `Option.getD`.
Avoid [panic in `leanPosToLspPos`](https://github.com/leanprover/lean4/pull/3071) when file source is unavailable.
Improve [short-circuiting behavior](https://github.com/leanprover/lean4/pull/2972) for `List.all` and `List.any`.
Several Lake bug fixes: [#3036](https://github.com/leanprover/lean4/issues/3036), [#3064](https://github.com/leanprover/lean4/issues/3064), [#3069](https://github.com/leanprover/lean4/issues/3069).
v4.4.0
---------

2
src/CMakeLists.txt
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@ -9,7 +9,7 @@ endif()
include(ExternalProject)
project(LEAN CXX C)
set(LEAN_VERSION_MAJOR 4)
set(LEAN_VERSION_MINOR 5)
set(LEAN_VERSION_MINOR 6)
set(LEAN_VERSION_PATCH 0)
set(LEAN_VERSION_IS_RELEASE 0) # This number is 1 in the release revision, and 0 otherwise.
set(LEAN_SPECIAL_VERSION_DESC "" CACHE STRING "Additional version description like 'nightly-2018-03-11'")