Fix MooncakeExt for 0.4.147

[penelopeysm]

@zero_adjoint only works for reverse-mode, the replacement is @zero_derivative which works for both forwards- and reverse-mode. See https://chalk-lab.github.io/Mooncake.jl/stable/developer_documentation/internal_docstrings/#Mooncake.@zero_adjoint-Tuple{Any,%20Any}

This is required because Mooncake.TestUtil.test_rule by default now tests both forwards- and reverse-mode, so to get the following test to pass we need to change the original definition.

DynamicPPL.jl/test/ext/DynamicPPLMooncakeExt.jl

Lines 1 to 5 in 6742812

	@testset "DynamicPPLMooncakeExt" begin
	Mooncake.TestUtils.test_rule(
	StableRNG(123456), istrans, VarInfo(); unsafe_perturb=true, interface_only=true
	)
	end

[Copilot]

Pull Request Overview

This PR updates the DynamicPPLMooncakeExt module to be compatible with Mooncake version 0.4.147 by replacing the deprecated @zero_adjoint macro with the new @zero_derivative macro.

• Replaces @zero_adjoint with @zero_derivative in the Mooncake extension
• Updates changelog to document the compatibility fix for Mooncake 0.4.147

Reviewed Changes

Copilot reviewed 2 out of 3 changed files in this pull request and generated no comments.

File	Description
ext/DynamicPPLMooncakeExt.jl	Updates macro call to use the new @zero_derivative instead of deprecated @zero_adjoint
HISTORY.md	Adds changelog entry for version 0.37.1 documenting the Mooncake compatibility update

---

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[github-actions]

Benchmark Report for Commit 574baba

Computer Information

Julia Version 1.11.6
Commit 9615af0f269 (2025-07-09 12:58 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 4 × AMD EPYC 7763 64-Core Processor
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, znver3)
Threads: 1 default, 0 interactive, 1 GC (on 4 virtual cores)

Benchmark Results

|                 Model | Dimension |  AD Backend |      VarInfo Type | Linked | Eval Time / Ref Time | AD Time / Eval Time |
|-----------------------|-----------|-------------|-------------------|--------|----------------------|---------------------|
| Simple assume observe |         1 | forwarddiff |             typed |  false |                  8.3 |                 1.5 |
|           Smorgasbord |       201 | forwarddiff |             typed |  false |                632.9 |                45.9 |
|           Smorgasbord |       201 | forwarddiff | simple_namedtuple |   true |                407.5 |                62.4 |
|           Smorgasbord |       201 | forwarddiff |           untyped |   true |               1150.5 |                30.3 |
|           Smorgasbord |       201 | forwarddiff |       simple_dict |   true |               6424.8 |                26.0 |
|           Smorgasbord |       201 | reversediff |             typed |   true |               1022.1 |                39.8 |
|           Smorgasbord |       201 |    mooncake |             typed |   true |                973.8 |                 4.6 |
|    Loop univariate 1k |      1000 |    mooncake |             typed |   true |               5627.1 |                 4.4 |
|       Multivariate 1k |      1000 |    mooncake |             typed |   true |                978.2 |                 8.8 |
|   Loop univariate 10k |     10000 |    mooncake |             typed |   true |              63652.6 |                 4.1 |
|      Multivariate 10k |     10000 |    mooncake |             typed |   true |               8300.5 |                10.1 |
|               Dynamic |        10 |    mooncake |             typed |   true |                133.4 |                11.1 |
|              Submodel |         1 |    mooncake |             typed |   true |                 13.0 |                 5.3 |
|                   LDA |        12 | reversediff |             typed |   true |               1069.7 |                 2.5 |

[penelopeysm]

It's not deprecated, AI hallucinating as usual :(

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.26%. Comparing base (6742812) to head (574baba).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1021   +/-   ##
=======================================
  Coverage   82.26%   82.26%           
=======================================
  Files          38       38           
  Lines        3947     3947           
=======================================
  Hits         3247     3247           
  Misses        700      700           

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[coveralls]

Pull Request Test Coverage Report for Build 16937863462

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 4 unchanged lines in 2 files lost coverage.
• Overall coverage remained the same at 82.516%

---

Files with Coverage Reduction	New Missed Lines	%
src/bijector.jl	1	93.33%
src/varinfo.jl	3	85.33%

Totals
Change from base Build 16879750686:	0.0%
Covered Lines:	3247
Relevant Lines:	3935

---

💛 - Coveralls

[sunxd3]

thanks for looking after this, Penny

[penelopeysm]

CI fails so I have the compulsion to do something 😄