[Diff since v3.0.0](v3.0.0...v3.0.1)

**Merged pull requests:**
- Bump SciMLLogging to 2.0 (#91) (@jClugstor)

[Diff since v2.12.0](v2.12.0...v3.0.0)

Many breaking changes. The complete migration story is detailed in
https://github.com/SciML/OrdinaryDiffEq.jl/blob/master/NEWS.md

**Merged pull requests:**
- Bump major version for SciMLBase v3 / DiffEqBase v7 (#89) (@ChrisRackauckas-Claude)

[Diff since v2.11.0](v2.11.0...v2.12.0)

**Merged pull requests:**
- Add `.gitignore` file and remove Manifest  (#85) (@jClugstor)
- Bump julia-actions/setup-julia from 2 to 3 (#86) (@dependabot[bot])
- Bump for SciMLBase v3 / DiffEqBase v7 (#88) (@ChrisRackauckas-Claude)

[Diff since v2.10.1](v2.10.1...v2.11.0)

**Merged pull requests:**
- SciMLLogging Integration (#84) (@jClugstor)

[Diff since v2.10.0](v2.10.0...v2.10.1)

**Merged pull requests:**
- Support SciMLBase v3 (#83) (@ChrisRackauckas-Claude)

[Diff since v2.9.0](v2.9.0...v2.10.0)

**Merged pull requests:**
- Fix type instabilities, add QA test group, improve per-step allocations (#80) (@ChrisRackauckas-Claude)

[Diff since v2.8.0](v2.8.0...v2.9.0)

**Merged pull requests:**
- Add DAE initialization support (NoInit, CheckInit, OverrideInit) (#79) (@ChrisRackauckas-Claude)

[Diff since v2.7.0](v2.7.0...v2.8.0)

**Merged pull requests:**
- Improve explicit imports hygiene (#69) (@ChrisRackauckas-Claude)
- Fix convergence tests and add to test suite (#70) (@ChrisRackauckas-Claude)
- Switch from JuliaFormatter to Runic.jl for code formatting (#72) (@ChrisRackauckas-Claude)
- Bump actions/checkout from 4 to 6 (#73) (@dependabot[bot])
- Performance improvements: reduce allocations and improve type stability (#74) (@ChrisRackauckas-Claude)
- Add interface compatibility checks and tests for GPU arrays and BigFloat (#75) (@ChrisRackauckas-Claude)
- Documentation improvements: Fix errors and add comprehensive docstrings (#76) (@ChrisRackauckas-Claude)
- Add in-place solver support following OrdinaryDiffEq cache pattern (#78) (@ChrisRackauckas-Claude)

**Closed issues:**
- convergence tests fails (#7)
- Improve efficiency (#26)

[Diff since v2.6.1](v2.6.1...v2.7.0)

**Merged pull requests:**
- MassInstallAction: Install the Invalidations workflow on this repository (#38) (@devmotion)
- enable dependabot for GitHub actions (#39) (@ranocha)
- Bump actions/checkout from 1 to 3 (#40) (@dependabot[bot])
- Bump codecov/codecov-action from 1 to 3 (#41) (@dependabot[bot])
- Bump actions/cache from 1 to 3 (#42) (@dependabot[bot])
- Bump actions/checkout from 3 to 4 (#43) (@dependabot[bot])
- Bump actions/cache from 3 to 4 (#44) (@dependabot[bot])
- Bump codecov/codecov-action from 3 to 4 (#45) (@dependabot[bot])
- ci: explicitly specify token for codecov (#46) (@thazhemadam)
- Run JuliaFormatter.format() (#47) (@LilithHafner)
- Bump julia-actions/setup-julia from 1 to 2 (#48) (@dependabot[bot])
- ci: standardise workflows using SciML's reusable workflows (#49) (@thazhemadam)
- ci: update tests workflow to use centralised reusable workflow (#50) (@thazhemadam)
- ci: test with `1`, `lts` and `pre` versions of julia (#51) (@thazhemadam)
- Add spell checking configuration (#52) (@ChrisRackauckas)
- [ci skip] Fix spelling errors in DASSL.jl (#53) (@ChrisRackauckas)
- [ci skip] Fix yout terminology and update typos configuration (#54) (@ChrisRackauckas)
- Add downgrade CI workflow (#55) (@ChrisRackauckas)
- Apply JuliaFormatter to fix code formatting (#56) (@ChrisRackauckas)
- Bump actions/checkout from 4 to 6 (#59) (@dependabot[bot])
- Add Julia ecosystem to Dependabot configuration (#60) (@ChrisRackauckas-Claude)
- Add Windows testing to CI workflow (Fixes #13) (#63) (@ChrisRackauckas-Claude)
- Documentation improvements: fix broken URLs, typos, and examples (#64) (@ChrisRackauckas-Claude)
- Add PrecompileTools workload to improve TTFX (#66) (@ChrisRackauckas-Claude)
- Bump version to 2.7.0 for release (#68) (@ChrisRackauckas-Claude)

**Closed issues:**
- Enable AppVeyor Testing (#13)
- Release v2.7.0 - 57 commits since last release (#67)

## DASSL v2.6.1

[Diff since v2.6.0](v2.6.0...v2.6.1)



**Merged pull requests:**
- format SciML Style (#36) (@ChrisRackauckas)
- move to DAEProblemLibrary (#37) (@ChrisRackauckas)