# Announcements **URL:** https://psychtoolbox.discourse.group/c/official-news-about-ptb/5.md [Latest](https://psychtoolbox.discourse.group/latest.md) · [Categories](https://psychtoolbox.discourse.group/categories.md) · [Tags](https://psychtoolbox.discourse.group/tags.md) --- ## [Action needed to save PsychToolbox](https://psychtoolbox.discourse.group/t/action-needed-to-save-psychtoolbox/5674)
**Author:** [@dcnieho](https://psychtoolbox.discourse.group/u/dcnieho)\ **Replies:** 0\ **Last updated:** [March 31, 2025, 5:10am UTC](https://psychtoolbox.discourse.group/t/action-needed-to-save-psychtoolbox/5674 "2025-03-31T05:10:29Z")
Dear colleague, PsychToolbox (PTB) was first released 30 years ago this year and remains one of the most widely used software packages for running behavioural experiments. It offers unrivalled cross-platform visual and … --- ## [Posting guidelines](https://psychtoolbox.discourse.group/t/posting-guidelines/3058)
**Author:** [@Ian-Max-Andolina](https://psychtoolbox.discourse.group/u/Ian-Max-Andolina)\ **Replies:** 0\ **Last updated:** [February 18, 2020, 2:19am UTC](https://psychtoolbox.discourse.group/t/posting-guidelines/3058 "2020-02-18T02:19:39Z")
These are user-led forums (and most of us are busy doing our own research), so if you wish to stand the highest chance of getting a useful reply, please make sure you try to craft a clear descriptive post. If you are ne… --- ## [Psychtoolbox 3.0.22.3 "The most fantastic Matala" 🍹](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-3-the-most-fantastic-matala/5810)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [August 14, 2026, 3:16pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-3-the-most-fantastic-matala/5810 "2026-08-14T15:16:01Z")
Psychtoolbox 3.0.22.3 “The most fantastic Matala” was released on 14th August 2026. … A last act of work from a greek island before it is :beach\_with\_umbrella: time, so the brain can calm down and go into full vacation … --- ## [On vacation until early September 2026 ☀](https://psychtoolbox.discourse.group/t/on-vacation-until-early-september-2026/5807)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [June 15, 2026, 4:23am UTC](https://psychtoolbox.discourse.group/t/on-vacation-until-early-september-2026/5807 "2026-06-15T04:23:06Z")
While my last “vacation” was mostly working twice as hard, and wasting away employer mandated vacation days from last year, this time it will be a real vacation in a sunny country with beaches :beach\_with\_umbrella:, sea … --- ## [Psychtoolbox 3.0.22.2 "The long long slog" 🫩](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-2-the-long-long-slog/5796)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 2, 2026, 10:10pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-2-the-long-long-slog/5796 "2026-03-02T22:10:39Z")
Psychtoolbox 3.0.22.2 “The long long slog” was released on 2nd March 2026. :face\_with\_bags\_under\_eyes: You can download it as a zip file from the following link: https://github.com/Psychtoolbox-3/Psychtoolbox-3/release… --- ## [Psychtoolbox is on christmas vacation from now on. Also, don't upgrade to macOS Tahoe! 🎄](https://psychtoolbox.discourse.group/t/psychtoolbox-is-on-christmas-vacation-from-now-on-also-dont-upgrade-to-macos-tahoe/5781)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [December 21, 2025, 6:07pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-is-on-christmas-vacation-from-now-on-also-dont-upgrade-to-macos-tahoe/5781 "2025-12-21T18:07:44Z")
:santa: Ho ho ho! Christmas is around the corner and I started my Christmas and new year vacation. Therefore user support is from now on suspended until mid January 2026. Also, I strongly advise the macOS users, and e… --- ## [Psychtoolbox 3.0.22.1 "Little Miss Sunshine!" 💃](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-1-little-miss-sunshine/5732)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [July 11, 2025, 8:50pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-1-little-miss-sunshine/5732 "2025-07-11T20:50:54Z")
Psychtoolbox 3.0.22.1 :sun\_with\_face:“Little Miss Sunshine!”:woman\_dancing: was released at 11th July 2025. You can download it as a zip file from the following link: https://github.com/Psychtoolbox-3/Psychtoolbox-3/re… --- ## [Psychtoolbox 3.0.22.0 release "Oh wie schoen ist Panama!" 🦥](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-0-release-oh-wie-schoen-ist-panama/5715)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [May 27, 2025, 11:56pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-22-0-release-oh-wie-schoen-ist-panama/5715 "2025-05-27T23:56:38Z")
Psychtoolbox 3.0.22.0 :sloth: “Oh wie schoen ist Panama!” :tropical\_fish: was released at 28th May 2025. :panama: :palm\_tree: You can download it as a zip file from the following link: https://github.com/Psychtoolbox-3… --- ## [Paid support membership support suspended until at least mid July 2025. 🌞](https://psychtoolbox.discourse.group/t/paid-support-membership-support-suspended-until-at-least-mid-july-2025/5713)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [May 25, 2025, 7:41pm UTC](https://psychtoolbox.discourse.group/t/paid-support-membership-support-suspended-until-at-least-mid-july-2025/5713 "2025-05-25T19:41:27Z")
It’s that time of the year. I’m exhausted like never before, and will go on a long vacation throughout June and bits of July, starting in a few days, using up all the carried over remaining vacation days from 2023 and 20… --- ## [Psychtoolbox 3.0.21.0 release "Fruity Aspirational Cashcow" 🐄](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-21-0-release-fruity-aspirational-cashcow/5673)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 1\ **Last updated:** [March 31, 2025, 9:58am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-21-0-release-fruity-aspirational-cashcow/5673 "2025-03-31T09:58:35Z")
Psychtoolbox 3.0.21.0 “Fruity Aspirational Cashcow” :balloon::cow: :confetti\_ball: was released at 31st March 2025. You can download it as a zip file from the following link: https://github.com/Psychtoolbox-3/Psychtool… --- ## [Psychtoolbox 3.0.20.4 release "Sleight of Hand" 🫶](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-4-release-sleight-of-hand/5670)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 21, 2025, 7:31am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-4-release-sleight-of-hand/5670 "2025-03-21T07:31:14Z")
Psychtoolbox 3.0.20.4 “Sleight of Hand” :heart\_hands: was released at 21st March 2025. The complete development history can be found in our GitHub repository. The release tag is “3.0.20.4”, with the full tree and commi… --- ## [Psychtoolbox 3.0.20.2/3 release “Appletizer” SP2/3 🐍](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-2-3-release-appletizer-sp2-3/5632)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [February 1, 2025, 3:47am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-2-3-release-appletizer-sp2-3/5632 "2025-02-01T03:47:43Z")
Happy new year of the Wood Snake! Psychtoolbox 3.0.20.2 “Appletizer SP2” was released at 1st February 2025. Update: Psychtoolbox 3.0.20.3 “Appletizer SP3” was released at 3rd February 2025. The complete development hi… --- ## [Psychtoolbox 3.0.20.1 release “Appletizer” SP1 ☃](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-1-release-appletizer-sp1/5613)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [January 12, 2025, 4:35am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-1-release-appletizer-sp1/5613 "2025-01-12T04:35:14Z")
Psychtoolbox 3.0.20.1 “Appletizer SP1” was released at 12th January 2025. The complete development history can be found in our GitHub repository. The release tag is “3.0.20.1”, with the full tree and commit logs under … --- ## [Paid user support suspended until late January 2025](https://psychtoolbox.discourse.group/t/paid-user-support-suspended-until-late-january-2025/5604)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [December 23, 2024, 7:07pm UTC](https://psychtoolbox.discourse.group/t/paid-user-support-suspended-until-late-january-2025/5604 "2024-12-23T19:07:13Z")
:santa: Ho ho ho. Christmas is around the corner, and another financially difficult, unsuccessful, and extremely stressful year ends for Psychtoolbox and myself. I am completely exhausted and as close to burnout as never… --- ## [Psychtoolbox 3.0.20.0 release “Appletizer” 🎄](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-0-release-appletizer/5590)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 1\ **Last updated:** [December 14, 2024, 5:35am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-20-0-release-appletizer/5590 "2024-12-14T05:35:27Z")
As a little pre-christmas present :christmas\_tree: for you: Psychtoolbox 3.0.20 “Appletizer” was released at 13th December 2024, at least in some time zone. Hopefully Friday 13th will bring us luck instead of horror … --- ## [Psychtoolbox 3.0.19.16 release “Last free dessert”](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-16-release-last-free-dessert/5561)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [November 20, 2024, 6:19am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-16-release-last-free-dessert/5561 "2024-11-20T06:19:18Z")
Psychtoolbox 3.0.19.16 “Last free dessert” was released at 20th November 2024. The complete development history can be found in our GitHub repository. The release tag is “3.0.19.16”, with the full tree and commit logs … --- ## [Psychtoolbox 3.0.19.15 release "Last free lunch"](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-15-release-last-free-lunch/5535)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [November 3, 2024, 12:42am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-15-release-last-free-lunch/5535 "2024-11-03T00:42:52Z")
Psychtoolbox 3.0.19 update “Last free lunch” was released at 3rd November 2024. The complete development history can be found in our GitHub repository. The release tag is “3.0.19.15”, with the full tree and commit logs… --- ## [PSA: XDC 2023 now in progress](https://psychtoolbox.discourse.group/t/psa-xdc-2023-now-in-progress/5132)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [October 18, 2023, 3:04am UTC](https://psychtoolbox.discourse.group/t/psa-xdc-2023-now-in-progress/5132 "2023-10-18T03:04:35Z")
For those interested in the technical details of Linux graphics: XDC 2023 is happening in A Coruña Spain right now. Timetable: Recording of day 1 (ie. past tuesday): Upcoming live streams / recordings f… --- ## [PSA: XDC 2024 is happening now](https://psychtoolbox.discourse.group/t/psa-xdc-2024-is-happening-now/5514)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [October 9, 2024, 6:48pm UTC](https://psychtoolbox.discourse.group/t/psa-xdc-2024-is-happening-now/5514 "2024-10-09T18:48:35Z")
Due to the severe lack of funding, I am again not able to join in person, just like I wasn’t last year, something that may be quite bad for future Psychtoolbox innovations and sustainability not just on Linux, but that’s… --- ## [Psychtoolbox 3.0.19.14 "Sommerloch" released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-14-sommerloch-released/5449)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [August 11, 2024, 8:27pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-14-sommerloch-released/5449 "2024-08-11T20:27:55Z")
Psychtoolbox 3.0.19 update “Sommerloch” was released at 11th August 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.14”, with the full tree and commit … --- ## [Psychtoolbox 3.0.19.13 "Stupido" released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-13-stupido-released/5373)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [June 7, 2024, 9:26pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-13-stupido-released/5373 "2024-06-07T21:26:45Z")
Psychtoolbox 3.0.19 update “Stupido” was released at 7th June 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.13”, with the full tree and commit logs u… --- ## [Psychtoolbox 3.0.19.12 release “Scraps” released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-12-release-scraps-released/5370)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [June 5, 2024, 7:22pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-12-release-scraps-released/5370 "2024-06-05T19:22:28Z")
Psychtoolbox 3.0.19 update “Scraps” was released at 5th June 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.12”, with the full tree and commit logs un… --- ## [Psychtoolbox talk at VSS 2024 Satellite on Psychophysics Software with Matlab](https://psychtoolbox.discourse.group/t/psychtoolbox-talk-at-vss-2024-satellite-on-psychophysics-software-with-matlab/5352)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 2\ **Last updated:** [May 22, 2024, 10:29pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-talk-at-vss-2024-satellite-on-psychophysics-software-with-matlab/5352 "2024-05-22T22:29:01Z")
Next Monday at VSS 2024, there will be a satellite event about “Psychophysics Software with Matlab”, organized by Mathworks. Among other things, it will involve: A remote presentation by Celia Foster about the latest n… --- ## [Psychtoolbox 3.0.19.11 release "Eyegazer" released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-11-release-eyegazer-released/5355)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [May 18, 2024, 5:49am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-11-release-eyegazer-released/5355 "2024-05-18T05:49:19Z")
Psychtoolbox 3.0.19 update “Eyegazer” was released at 18th May 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.11”, with the full tree and commit logs … --- ## [Psychtoolbox 3.0.19.10 release "Bitty Bits" released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-10-release-bitty-bits-released/5311)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 26, 2024, 5:59am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-10-release-bitty-bits-released/5311 "2024-03-26T05:59:26Z")
Psychtoolbox 3.0.19 Beta update “Bitty Bits” was released at 26th March 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.10”, with the full tree and com… --- ## [Psychtoolbox 3.0.19.9 release “Tag games” released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-9-release-tag-games-released/5305)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 16, 2024, 9:09pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-9-release-tag-games-released/5305 "2024-03-16T21:09:22Z")
Psychtoolbox 3.0.19 Beta update “Tag games” was released at 16th March 2024. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.9”, with the full tree and commi… --- ## [Psychtoolbox 3.0.19.8 release “CamJam” released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-8-release-camjam-released/5304)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 14, 2024, 6:00pm UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-8-release-camjam-released/5304 "2024-03-14T18:00:25Z")
To celebrate the start of another employer enforced vacation… Psychtoolbox 3.0.19 Beta update “CamJam” was released at 14th March 2024. As usual, the complete development history can be found in our GitHub repository. … --- ## [Support stopped until late May 2024](https://psychtoolbox.discourse.group/t/support-stopped-until-late-may-2024/5296)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [March 8, 2024, 5:25am UTC](https://psychtoolbox.discourse.group/t/support-stopped-until-late-may-2024/5296 "2024-03-08T05:25:30Z")
I am mostly on vacation throughout the remainder of April and early May 2024, as my employer forces me to use up all the unused vacation days I have left over from the years 2018 to 2023 right now to reduce any financial… --- ## [Support stopped until February 2024, upcoming loss of installer & updater, misc](https://psychtoolbox.discourse.group/t/support-stopped-until-february-2024-upcoming-loss-of-installer-updater-misc/5221)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [December 17, 2023, 9:54pm UTC](https://psychtoolbox.discourse.group/t/support-stopped-until-february-2024-upcoming-loss-of-installer-updater-misc/5221 "2023-12-17T21:54:41Z")
I am now on vacation :cocktail: throughout December and much of January 2024, as my employer wants me to use up some good chunk of the unused vacation days I have left over from the years 2022 and 2023 to reduce liabil… --- ## [Psychtoolbox 3.0.19.7 release “Christmas looks” released](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-7-release-christmas-looks-released/5220)
**Author:** [@mariokleiner](https://psychtoolbox.discourse.group/u/mariokleiner)\ **Replies:** 0\ **Last updated:** [December 17, 2023, 12:09am UTC](https://psychtoolbox.discourse.group/t/psychtoolbox-3-0-19-7-release-christmas-looks-released/5220 "2023-12-17T00:09:11Z")
Psychtoolbox 3.0.19 Beta update “Christmas looks” was released at 16th December 2023. As usual, the complete development history can be found in our GitHub repository. The release tag is “3.0.19.7”, with the full tree … [Next page](https://psychtoolbox.discourse.group/c/official-news-about-ptb/5.md?page=1)