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feat!: Remove BackgroundOperation and is_alive from UpdateProcessor - #557

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keelerm84 wants to merge 1 commit into
feat/10.xfrom
mk/SDK-2773/remove-background-operation
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keelerm84 wants to merge 1 commit into
feat/10.xfrom
mk/SDK-2773/remove-background-operation

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@keelerm84 keelerm84 commented Nov 2, 2026 •

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Summary

UpdateProcessor now declares start and stop itself and no longer inherits from BackgroundOperation, which is removed. Custom UpdateProcessor implementations no longer need to define is_alive, and code that imports BackgroundOperation must drop that import.


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Overview
This is a breaking public API change: the internal BackgroundOperation helper is deleted, and UpdateProcessor no longer inherits it. UpdateProcessor now defines start and stop directly (with updated docstrings) and no longer documents or requires is_alive.

Built-in no-op and test doubles are updated to match: NullUpdateProcessor, NullEventProcessor, and AsyncNullEventProcessor in stubs.py, plus MockUpdateProcessor, MockEventProcessor, and MockAsyncUpdateProcessor drop their is_alive implementations. Custom UpdateProcessor implementations and any code importing BackgroundOperation must be updated accordingly.

Reviewed by Cursor Bugbot for commit 1ed1fb8. Bugbot is set up for automated code reviews on this repo. Configure here.

UpdateProcessor now declares start and stop directly. Custom
UpdateProcessor implementations no longer need to define is_alive. Code
that referenced BackgroundOperation must drop that reference.
@keelerm84
keelerm84 requested a review from a team as a code owner November 2, 2026 20:17
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