[Diff since v6.191.0](v6.191.0...v6.192.0)

**Merged pull requests:**
- Fix ordered list in `solve()` docstring (#1223) (@abhro)
- API function for kwarg merging (#1224) (@isaacsas)

[Diff since v6.190.5](v6.190.5...v6.191.0)

**Merged pull requests:**
- Correct enzymerules (#1222) (@wsmoses)

[Diff since v6.190.4](v6.190.4...v6.190.5)

**Merged pull requests:**
- Add downstream test for SubArray support (#1220) (@ChrisRackauckas-Claude)
- Revert "Fix Enzyme solve_up rule signature to support DuplicatedNoNeed" (#1221) (@avik-pal)

[Diff since v6.190.3](v6.190.3...v6.190.4)

**Merged pull requests:**
- Fix SubArray FunctionWrapper type mismatch (#1219) (@ChrisRackauckas-Claude)

[Diff since v6.190.2](v6.190.2...v6.190.3)

**Merged pull requests:**
- Fix Enzyme solve_up rule signature to support DuplicatedNoNeed (#1218) (@ChrisRackauckas-Claude)

**Closed issues:**
- MethodError: no method matching _initialize_dae! for SDEProblem (#1217)

[Diff since v6.190.1](v6.190.1...v6.190.2)

**Merged pull requests:**
- Remove BrownBasicInit alias, keep only BrownFullBasicInit (#1216) (@ChrisRackauckas-Claude)

[Diff since v6.190.0](v6.190.0...v6.190.1)

**Merged pull requests:**
- Document initializealg keyword argument in solve docstring (#1213) (@ChrisRackauckas-Claude)
- Add comprehensive docstrings for all DAE initialization algorithms (#1214) (@ChrisRackauckas-Claude)
- Add extended initialization algorithms from OrdinaryDiffEq (#1215) (@ChrisRackauckas-Claude)

[Diff since v6.189.1](v6.189.1...v6.190.0)

**Merged pull requests:**
- Remove functions for NonlinearProblems (#1211) (@jClugstor)
- Add DAE initialization algorithms: DefaultInit, BrownBasicInit, ShampineCollocationInit (#1212) (@ChrisRackauckas-Claude)

[Diff since v6.189.0](v6.189.0...v6.189.1)

**Merged pull requests:**
- fix: fix `save_discretes` handling (#1209) (@AayushSabharwal)

[Diff since v6.188.0](v6.188.0...v6.189.0)

**Merged pull requests:**
- feat: add support for `save_discretes` in `integrator.opts` (#1208) (@AayushSabharwal)