v0.39

[penelopeysm]

This is the regular PR for accumulating breaking changes, to be released in the next minor version of DynamicPPL.

Potential 0.39 changes

Largely speaking I (Penny) am fairly happy with the general state of DPPL now. By far the biggest pain point for me, and the only thing I feel like I really want to change in the short term, is ThreadSafeVarInfo. Apart from that, in my opinion, it's now a good time to spend more resources on Turing, samplers, and optimisation.

Removal of parent contexts

• ConditionContext, FixedContext, and PrefixContext #1010
• Replace PrefixContext with model.prefix #1011
• Remove NodeTrait #1052

Unification of FixedContext and ConditionContext

Even if the contexts themselves don't get removed, I think it definitely makes sense to coalesce these two into a single thing to avoid weird behaviour.

• fix condition #1012

A temporary solution to ThreadSafeVarInfo

See #1023 for the general motivation behind this (although that PR is probably not the right appraoch; it's too difficult to make it fully work correctly).

• ThreadSafeVarInfo and threadid #924
• Remove TSVI or at least make TSVI opt-in #1086

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 81.06%. Comparing base (1b159a6) to head (262d732).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1082   +/-   ##
=======================================
  Coverage   81.06%   81.06%           
=======================================
  Files          40       40           
  Lines        3749     3749           
=======================================
  Hits         3039     3039           
  Misses        710      710           

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