Feat: Add simulate_delay functionality - #139
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🤖 I have created a release *beep* *boop* --- ## [0.2.6](selene-core-v0.2.5...selene-core-v0.2.6) (2026-03-02) ### Features * Add simulate_delay functionality ([#139](#139)) ([cca97fa](cca97fa)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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🤖 I have created a release *beep* *boop* --- ## [0.2.12](selene-sim-v0.2.11...selene-sim-v0.2.12) (2026-03-02) ### Features * Add simulate_delay functionality ([#139](#139)) ([cca97fa](cca97fa)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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🤖 I have created a release *beep* *boop* --- ## [0.3.0-alpha.1](selene-core-v0.3.0-alpha.0...selene-core-v0.3.0-alpha.1) (2026-06-12) ### ⚠ BREAKING CHANGES * Use struct exports for all plugin types, separate error model and simulator ([#169](#169)) * Add handling for an additional gateset ([#119](#119)) ### Features * Add __version__ attributes ([#137](#137)) ([379ae01](379ae01)) * Add handling for an additional gateset ([#119](#119)) ([5180b80](5180b80)) * Add simulate_delay functionality ([#139](#139)) ([cca97fa](cca97fa)) * Add support for object files provided as bytes ([#94](#94)) ([c4cfac6](c4cfac6)) * add timing to builtin runtimes and batching options to softrz runtime ([#158](#158)) ([049e123](049e123)) * Build improvements ([#142](#142)) ([12f399b](12f399b)) * Interactive use of Selene from python ([#135](#135)) ([db3028d](db3028d)) * Make interfaces shared, add ArgReader ([#171](#171)) ([143e742](143e742)) * QIR support using QIR-QIS ([#114](#114)) ([70ab294](70ab294)) * Result stream handling refactor ([#93](#93)) ([607a55e](607a55e)) * Stim improvements (more ops + state printing) ([#115](#115)) ([867d5e5](867d5e5)) * test on QIS instead of relying on the upper stack ([#150](#150)) ([b80a9c4](b80a9c4)) * Traces for analytics ([#160](#160)) ([24b9978](24b9978)) * Use mingw instead of msvc for windows wheels ([#143](#143)) ([3d91514](3d91514)) * Use struct exports for all plugin types, separate error model and simulator ([#169](#169)) ([c44a5c9](c44a5c9)) ### Bug Fixes * add `___barrier` to Helios QIS for QIR emulation ([#136](#136)) ([dfbc4c3](dfbc4c3)) * avoid using qir_major_version string for QIR detection ([#123](#123)) ([deaa0dc](deaa0dc)) * classify lowered qir-qis bitcode as helios ([#157](#157)) ([67fca60](67fca60)) * make qir-qis optional and stabilize CI ([#164](#164)) ([e52c0b2](e52c0b2)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
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🤖 I have created a release *beep* *boop* --- ## [0.3.0-alpha.1](selene-sim-v0.3.0-alpha.0...selene-sim-v0.3.0-alpha.1) (2026-06-12) ### ⚠ BREAKING CHANGES * Use struct exports for all plugin types, separate error model and simulator ([#169](#169)) * Add handling for an additional gateset ([#119](#119)) ### Features * Add __version__ attributes ([#137](#137)) ([379ae01](379ae01)) * Add event hook which records measurement results ([#104](#104)) ([01300ee](01300ee)), closes [#103](#103) * Add handling for an additional gateset ([#119](#119)) ([5180b80](5180b80)) * Add simulate_delay functionality ([#139](#139)) ([cca97fa](cca97fa)) * Add support for object files provided as bytes ([#94](#94)) ([c4cfac6](c4cfac6)) * add timing to builtin runtimes and batching options to softrz runtime ([#158](#158)) ([049e123](049e123)) * Better exception handling for parse_shots=False ([#70](#70)) ([3caf530](3caf530)) * Build improvements ([#142](#142)) ([12f399b](12f399b)) * Bump selene-core dependency and relax guppylang testing dependency ([#120](#120)) ([6375791](6375791)) * Cleanup error'd processes before log collection ([#98](#98)) ([77e698e](77e698e)) * **compiler:** Bump tket version; add wasm + gpu to the hugr-qis registry ([c69155d](c69155d)) * correct shot end strategy and error processing ([#91](#91)) ([93eaeb0](93eaeb0)) * Emit a nicer error when trying to emulate unsupported pytket ops ([#72](#72)) ([d88a28a](d88a28a)) * Fine-grained timeout configuration ([#69](#69)) ([072842e](072842e)) * Interactive use of Selene from python ([#135](#135)) ([db3028d](db3028d)) * Make interfaces shared, add ArgReader ([#171](#171)) ([143e742](143e742)) * QIR support using QIR-QIS ([#114](#114)) ([70ab294](70ab294)) * Quest performance improvements ([#133](#133)) ([af640e9](af640e9)) * random_advance ([#55](#55)) ([974b496](974b496)) * Record simulated delays in event hooks ([#154](#154)) ([608884a](608884a)) * Result stream handling refactor ([#93](#93)) ([607a55e](607a55e)) * Stim improvements (more ops + state printing) ([#115](#115)) ([867d5e5](867d5e5)) * Support state-dump passthrough on quantum replay simulator ([#108](#108)) ([1b01a01](1b01a01)) * test on QIS instead of relying on the upper stack ([#150](#150)) ([b80a9c4](b80a9c4)) * Test on QIS snapshots ([#134](#134)) ([c4d58ab](c4d58ab)) * Traces for analytics ([#160](#160)) ([24b9978](24b9978)) * update to tket-qsystem 0.20 ([#66](#66)) ([7191b07](7191b07)) * Use mingw instead of msvc for windows wheels ([#143](#143)) ([3d91514](3d91514)) * Use SeleneStartupError for errors before shot_start ([#170](#170)) ([85c2907](85c2907)) * Use struct exports for all plugin types, separate error model and simulator ([#169](#169)) ([c44a5c9](c44a5c9)) ### Bug Fixes * add `___barrier` to Helios QIS for QIR emulation ([#136](#136)) ([dfbc4c3](dfbc4c3)) * Add ENDING to allowed shot state on receiving meta information ([#100](#100)) ([fc4d673](fc4d673)) * Add numpy dependency back ([#127](#127)) ([c9a01eb](c9a01eb)) * avoid using qir_major_version string for QIR detection ([#123](#123)) ([deaa0dc](deaa0dc)) * classify lowered qir-qis bitcode as helios ([#157](#157)) ([67fca60](67fca60)) * **compiler:** error when entrypoint has arguments ([#84](#84)) ([604b131](604b131)) * **compiler:** update tket-qystem to fix CZ bug ([#78](#78)) ([3991f11](3991f11)) * correct post_runtime duration metric ([#74](#74)) ([0bef66a](0bef66a)) * make qir-qis optional and stabilize CI ([#164](#164)) ([e52c0b2](e52c0b2)) ### Documentation * add repository citation guidance and metadata ([#146](#146)) ([880a58b](880a58b)), closes [#145](#145) * Correct URL to guppy repository ([#121](#121)) ([27ded00](27ded00)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please). Co-authored-by: Jake Arkinstall <65358059+jake-arkinstall@users.noreply.github.com>
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This provides a hook for utility plugins to inform a runtime that a delay has occured due to classical processing. For example, if a call to an external library is known to take a certain amount of time on a real platform, this feature will allow the emulated library to signal to the runtime that some time has gone by. This will further flush timing information to the error model, allowing emulation of idling that takes classical processing into account.