Upload lean4_release_notes.jsonl

lean4_release_notes.jsonl

@@ -1437,4 +1437,275 @@
 {"Version": "v4.9.0", "section": "Breaking changes", "text": "BitVec literal notation is now <num>#<term>, global, and rotateLeft/rotateRight take shift modulo bitwidth.", "pull request": "4229"}
 {"Version": "v4.9.0", "section": "Breaking changes", "text": "No longer simp lemmas: List.length_pos and Option.bind_eq_some.", "pull request": "4172 / 4314"}
 {"Version": "v4.9.0", "section": "Breaking changes", "text": "Due to #3929, MessageData.ofPPFormat is removed; use MessageData.lazy or .ofFormatWithInfos.", "pull request": "3929"}
-{"Version": "v4.9.0", "section": "Breaking changes", "text": "Types in let/have can fail to elaborate due to new restrictions on embedded tactics (#4096).", "pull request": "4096"}
+{"Version": "v4.9.0", "section": "Breaking changes", "text": "Types in let/have can fail to elaborate due to new restrictions on embedded tactics (#4096).", "pull request": "4096"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Introduces a functional induction principle for recursive functions.", "pull request": "3432"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Expands or modifies the functional induction mechanism.", "pull request": "3620"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Refines generation of functional induction theorems for certain definitions.", "pull request": "3754"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Improves elaboration or usage of functional induction principles.", "pull request": "3762"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Optimizes aspects of functional induction for specific patterns.", "pull request": "3738"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Extends functional induction with additional features or fixes.", "pull request": "3776"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Functional induction)", "text": "Updates functional induction principle edge cases.", "pull request": "3898"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Termination checker)", "text": "Makes termination_by? avoid sizeOf when unnecessary.", "pull request": "3630"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Termination checker)", "text": "Improves the termination_by syntax.", "pull request": "3652"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Termination checker)", "text": "Changes how termination arguments are elaborated.", "pull request": "3658"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Termination checker)", "text": "Refactors GuessLex to allow more complex inferred termination arguments.", "pull request": "3665"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Termination checker)", "text": "Infers termination arguments like xs.size - i automatically.", "pull request": "3666"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Custom eliminators)", "text": "Introduces @[induction_eliminator] for custom induction tactics.", "pull request": "3629"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Custom eliminators)", "text": "Introduces @[cases_eliminator] for custom cases tactics.", "pull request": "3655"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Custom eliminators)", "text": "Provides custom Nat eliminators so 'induction' uses n+1, not Nat.succ n.", "pull request": "3747"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Shorter instance names)", "text": "Reduces generated anonymous instance name length using a new algorithm.", "pull request": "3089"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Shorter instance names)", "text": "Refines cross-project uniqueness by adding a module-based suffix.", "pull request": "3934"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Enables kernel projection reduction in dsimp.", "pull request": "3607"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Makes dsimp normalize raw Nat literals as OfNat.ofNat.", "pull request": "3624"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Ensures simp handles OfScientific literals properly.", "pull request": "3628"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Makes dsimp? report used simprocs.", "pull request": "3654"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Improves performance when simp encounters a loop.", "pull request": "3819"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Fixes discharger/cache interaction in simp.", "pull request": "3821"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Prevents simp from breaking Char literals.", "pull request": "3824"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Allows more lenient matching for Nat instances in simp.", "pull request": "3838"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Documents simp configuration options.", "pull request": "3870"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Fixes simp caching issues.", "pull request": "3972"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (simp/dsimp)", "text": "Improves cache behavior for well-behaved dischargers in simp.", "pull request": "4044"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Introduces a term canonicalizer for omega.", "pull request": "3639"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Improves the positivity handling for Int modulo operator.", "pull request": "3736"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Lets omega function as a simp discharger.", "pull request": "3828"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Adds helpful error messages for omega usage.", "pull request": "3847"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Refines internal usage or correctness in omega tactic.", "pull request": "3766"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Further fixes or improvements for omega logic.", "pull request": "3853"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (omega)", "text": "Enhances fallback error handling in omega tactic.", "pull request": "3875"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rfl)", "text": "Upstreams @[refl] attribute and the rfl tactic.", "pull request": "3671"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rfl)", "text": "Continues upstreaming rfl features or patches.", "pull request": "3708"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rfl)", "text": "Makes apply_rfl not operate on Eq itself.", "pull request": "3751"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rfl)", "text": "Improves rfl error message when no goals remain.", "pull request": "4067"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rw?)", "text": "Upstreams the rw? tactic for rewriting suggestions.", "pull request": "3719"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rw?)", "text": "Fixes or improves the rw? tactic usage details.", "pull request": "3783"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rw?)", "text": "Additional enhancements for lemma selection in rw?.", "pull request": "3794"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (rw?)", "text": "Further refinements or fixes for rw? rewriting approach.", "pull request": "3911"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (conv)", "text": "Adds a conv version of the calc tactic.", "pull request": "3659"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (conv)", "text": "Uses try with_reducible rfl to clean up conv states.", "pull request": "3763"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (#guard_msgs)", "text": "Introduces whitespace protection with the ⏎ char in #guard_msgs.", "pull request": "3617"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (#guard_msgs)", "text": "Adds options for whitespace normalization and message ordering in #guard_msgs.", "pull request": "3883"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (#guard_msgs)", "text": "Adds an unused variables ignore function for #guard_msgs checks.", "pull request": "3931"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (#guard_msgs)", "text": "Introduces diff output comparing expected vs. actual messages (#guard_msgs.diff).", "pull request": "3912"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (do notation)", "text": "Makes it an error to lift (<- ...) out of a pure if ... then ... else.", "pull request": "3820"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (LazyDiscrTree)", "text": "Fixes a name collision for LazyDiscrTree that caused cache poisoning.", "pull request": "3610"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (LazyDiscrTree)", "text": "Simplifies exact?/apply? usage in LazyDiscrTree.", "pull request": "3677"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (LazyDiscrTree)", "text": "Moves general exact?/apply? logic into LazyDiscrTree internals.", "pull request": "3685"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (LazyDiscrTree)", "text": "Improves lemma selection for rw? using LazyDiscrTree.", "pull request": "3769"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (LazyDiscrTree)", "text": "Improves ordering of matches in LazyDiscrTree lookups.", "pull request": "3818"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms", "text": "Adds inductive.autoPromoteIndices option to disable index auto-promotion.", "pull request": "3590"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Preserves simp cache/dischargeDepth fields in Lean.Meta.Simp.Result.mkEqSymm.", "pull request": "3606"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Makes elabTermEnsuringType respect errToSorry to improve error recovery in have.", "pull request": "3633"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Allows noncomputable unsafe definitions, deferring implementations.", "pull request": "3647"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Adjusts namespaces of certain tactics for consistency.", "pull request": "3672"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Fixes Ord derive handler for indexed inductives with unused alternatives.", "pull request": "3725"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Improves performance of derived Ord instances.", "pull request": "3893"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Changes error reporting for failing tactic macros, e.g. rfl no-goal error.", "pull request": "3771"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Fixes elaboration of generalized field notation if the object is optional param.", "pull request": "3745"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Requires colGt for commands like universe, variable, namespace to avoid parse ambiguities.", "pull request": "3799"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Lets split tactic be used in code contexts, not just proofs.", "pull request": "3815"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Adds missing info for induction with with-clauses (| cstr a b => ?_).", "pull request": "3822"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Fixes withSetOptionIn combinator usage.", "pull request": "3806"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Removes unused trace.Elab.syntax option.", "pull request": "3844"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Improves hover/go-to-def for attribute command usage.", "pull request": "3896"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Makes linter options more discoverable.", "pull request": "3989"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Fixes go-to-def for syntax from @[builtin_term_parser].", "pull request": "3916"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Makes solveByElim handle symm lemmas correctly, re-enabling exact?/apply?.", "pull request": "3962"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Improves the @[deprecated] attribute to accept (since := \"<date>\").", "pull request": "3968"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Makes #print show structure fields.", "pull request": "3768"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Makes exact?% behave like by exact? rather than by apply?.", "pull request": "3974"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Forbids same transparency in decreasing_trivial macros, clarifying usage.", "pull request": "3994"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Adjusts transparency for he ▸ h notation elaboration.", "pull request": "3991"}
+{"Version": "v4.8.0", "section": "Language features, tactics, and metaprograms (Misc fixes)", "text": "Speeds up binop%/binrel% expression tree elaborators.", "pull request": "4092"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Documentation improvements and clarifications for various Lean 4 features.", "pull request": "3748"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Adds or refines doc examples in the Lean codebase.", "pull request": "3796"}
+{"Version": "v4.8.0", "section": "Docs", "text": "More usage examples and reference docs for Lean 4 tactics.", "pull request": "3800"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Documents further config and internal details of Lean 4.", "pull request": "3874"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Adds clarifications and usage notes for advanced Lean concepts.", "pull request": "3863"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Expands documentation on certain language constructs or modules.", "pull request": "3862"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Improves doc references for library code or syntax usage.", "pull request": "3891"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Refines doc strings for macros or commands.", "pull request": "3873"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Explains minor details in the reference about Lean code structure.", "pull request": "3908"}
+{"Version": "v4.8.0", "section": "Docs", "text": "Adds a few clarifications to specialized doc topics.", "pull request": "3872"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Enables auto-completions for import statements in the server.", "pull request": "3602"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Fixes off-by-one errors in diagnostic ranges (#392 in vscode-lean4).", "pull request": "3608"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Introduces snapshot trees for incremental tactics/parallelism foundation.", "pull request": "3014"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Adds a basic incrementality API for snapshot-based elaboration.", "pull request": "3849"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Allows server-to-client requests for advanced IDE features.", "pull request": "3271"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Fixes jump to definition with conflicting names from different files (#1170).", "pull request": "3656"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Keeps semantic tokens in sync, improving performance of semantic highlighting.", "pull request": "3691"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Further optimizes or stabilizes semantic tokens usage in the LSP server.", "pull request": "3925"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Enhances synchronization or correctness in semantic tokens logic.", "pull request": "3932"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Shows diagnostics suggesting 'Restart File' when a file dependency is saved.", "pull request": "3247"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Adds more diagnostics for 'Restart File' usage in the server.", "pull request": "3730"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Uses correct module names in references or highlight output.", "pull request": "3722"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Makes errors in the file header appear reliably, sets 'Import out of date' warning severity as hint.", "pull request": "3728"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Simplifies text of 'Import out of date' warning message.", "pull request": "3739"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Fixes info nodes from before the cursor being used for completions (#3462).", "pull request": "3778"}
+{"Version": "v4.8.0", "section": "Language server and IDE", "text": "Displays trace timings in Infoview for deeper performance insight.", "pull request": "3985"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Fixes hovers over binders so that they show types properly.", "pull request": "3797"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Adds attribute @[pp_using_anonymous_constructor] for structures to print as ⟨x,y,z⟩.", "pull request": "3640"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Expands usage of @[pp_using_anonymous_constructor] on structures like Sigma/PSigma.", "pull request": "3735"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Inlines parent-structure fields for structure instance printing by default.", "pull request": "3749"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Renames pp.structureProjections to pp.fieldNotation, adding suboption generalized.", "pull request": "3737"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Allows disabling or restricting field notation on a function-by-function basis.", "pull request": "3744"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Ensures no field notation is used on theorems, only definitions or functions.", "pull request": "3750"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Fixes interaction between app unexpanders and pp.fieldNotation.generalized.", "pull request": "4071"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Makes delabConstWithSignature put arguments after the colon when needed.", "pull request": "3625"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Adds option pp.mvars (default true) and pp.mvars.withType (default false).", "pull request": "3798"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Shows expression metavariables with type info if pp.mvars.withType is true.", "pull request": "3978"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Hides or shortens metavariable names if pp.mvars is false.", "pull request": "3980"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Makes binders hoverable in code with docstrings displayed.", "pull request": "3917"}
+{"Version": "v4.8.0", "section": "Pretty printing", "text": "Shows correct term in hovers for RHS of match expressions in Infoview.", "pull request": "4034"}
+{"Version": "v4.8.0", "section": "Library (Bool/Prop)", "text": "Improves simp confluence for mixing Bool and Prop terms.", "pull request": "3508"}
+{"Version": "v4.8.0", "section": "Library (Bool/Prop)", "text": "Adds more theorems or simplification rules for Bool/Prop usage.", "pull request": "3604"}
+{"Version": "v4.8.0", "section": "Library (Nat)", "text": "Makes Nat.succ_eq_add_one a simp lemma, aligning with n+1 usage.", "pull request": "3579"}
+{"Version": "v4.8.0", "section": "Library (Nat)", "text": "Replaces Nat.succ rules with simprocs for simpler rewriting.", "pull request": "3808"}
+{"Version": "v4.8.0", "section": "Library (Nat)", "text": "Adds faster Nat.repr implementation in C.", "pull request": "3876"}
+{"Version": "v4.8.0", "section": "Library (Int)", "text": "Adds or refines Int theorems for integer operations.", "pull request": "3890"}
+{"Version": "v4.8.0", "section": "Library (UInt)", "text": "Improves performance of UInt upcasting operations.", "pull request": "3960"}
+{"Version": "v4.8.0", "section": "Library (Array/Subarray)", "text": "Removes Array.eraseIdxAux, eraseIdxSzAux, eraseIdx'.", "pull request": "3676"}
+{"Version": "v4.8.0", "section": "Library (Array/Subarray)", "text": "Simplifies Array.findIdx? implementation.", "pull request": "3648"}
+{"Version": "v4.8.0", "section": "Library (Array/Subarray)", "text": "Renames Subarray fields from as/h₁/h₂ to array/start_le_stop/stop_le_array_size.", "pull request": "3851"}
+{"Version": "v4.8.0", "section": "Library (List)", "text": "Upstreams tail-recursive List operations and @[csimp] lemmas.", "pull request": "3785"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Adds or refines BitVec theorems for shifting/rotation, rewriting, etc.", "pull request": "3593"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Further updates BitVec theorems for various operations.", "pull request": "3597"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Extends BitVec rewriting rules or proofs.", "pull request": "3598"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Adds additional BitVec lemmas or theorems (like rotation).", "pull request": "3721"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Refines BitVec usage with advanced rewriting or equivalences.", "pull request": "3729"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Provides more BitVec facts for numeric reasoning.", "pull request": "3880"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Adds further expansions or corrections to BitVec theorems.", "pull request": "4039"}
+{"Version": "v4.8.0", "section": "Library (BitVec)", "text": "Protects Std.BitVec to avoid undesired overshadowing or redefinition.", "pull request": "3884"}
+{"Version": "v4.8.0", "section": "Library (String)", "text": "Fixes String.splitOn function behavior.", "pull request": "3832"}
+{"Version": "v4.8.0", "section": "Library (String)", "text": "Adds String.Pos.isValid and UTF-8 string validation logic.", "pull request": "3959"}
+{"Version": "v4.8.0", "section": "Library (String)", "text": "Implements a reference model for UTF-8 encoding/decoding in String.", "pull request": "3961"}
+{"Version": "v4.8.0", "section": "Library (IO)", "text": "Adds IO.getTaskState to check a task's runtime state (finished/running/waiting).", "pull request": "4097"}
+{"Version": "v4.8.0", "section": "Library (Refactors)", "text": "Reduces imports for Init.Data.Nat and Init.Data.Int.", "pull request": "3605"}
+{"Version": "v4.8.0", "section": "Library (Refactors)", "text": "Reduces imports for Init.Omega.Int, making it leaner.", "pull request": "3613"}
+{"Version": "v4.8.0", "section": "Library (Refactors)", "text": "Upstreams Std.Data.Nat into core Lean library.", "pull request": "3634"}
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