# Backwards-compatibility for PushGP -\> PlungeGP

**URL:** <https://discourse.pushlanguage.org/t/backwards-compatibility-for-pushgp-plungegp/2655>\
**Category:** Uncategorized\
**Created:** [November 13, 2026, 3:22pm UTC](https://discourse.pushlanguage.org/t/backwards-compatibility-for-pushgp-plungegp/2655 "2026-11-13T15:22:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bill](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.pushlanguage.org/bill/32/6_2.png) [@bill](https://discourse.pushlanguage.org/u/bill)\
**Post date:** [November 13, 2026, 3:22pm UTC](https://discourse.pushlanguage.org/t/backwards-compatibility-for-pushgp-plungegp/2655/1 "2026-11-13T15:22:29Z")

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I’ve been accumulating a few questions as I prep the first release of the PlungeGP app, and I’m hoping @thelmuth and @erp12 and @lspector can help me not be confused. I’m going to make this thread to just try to collect the questions and explanations in one place.

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**Author:** ![bill](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.pushlanguage.org/bill/32/6_2.png) [@bill](https://discourse.pushlanguage.org/u/bill)\
**Post date:** [November 13, 2026, 4:31pm UTC](https://discourse.pushlanguage.org/t/backwards-compatibility-for-pushgp-plungegp/2655/3 "2026-11-13T16:31:31Z")

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LOL the first question I had was about PSB1 “printing” benchmarks, and only just now realized it’s solved and settled by the PSB2 paper.

@thelmuth is there a working link to the PSB1 paper online anywhere?

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**Author:** ![lspector](https://sea2.discourse-cdn.com/flex016/user_avatar/discourse.pushlanguage.org/lspector/32/4_2.png) [@lspector](https://discourse.pushlanguage.org/u/lspector)\
**Post date:** [November 13, 2026, 10:46pm UTC](https://discourse.pushlanguage.org/t/backwards-compatibility-for-pushgp-plungegp/2655/4 "2026-11-13T22:46:38Z")

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> is there a working link to the PSB1 paper online anywhere?

[https://dl.acm.org/doi/10.1145/2739480.2754769](https://dl.acm.org/doi/10.1145/2739480.2754769)