# πŸŽ‰ Baserow 1.34 is here – up to 10x faster filters, data constraints, custom CSS/JS & more! **URL:** https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687 **Category:** Announcements **Tags:** release, news **Created:** [July 10, 2025, 9:23am UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687 "2025-07-10T09:23:47Z") **Posts on this page:** 8 **Page:** 1
### Author: ![olgatrykush](https://community.baserow.io/user_avatar/community.baserow.io/olgatrykush/32/219_2.png) [@olgatrykush](https://community.baserow.io/u/olgatrykush) #### Post date: [July 10, 2025, 9:23am UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/1 "2025-07-10T09:23:47Z")
This release is packed with improvements that make working with large datasets faster and smarter. πŸš€ **Highlights:** β†’ **Field indexes** – Speed up filters by up to 10x on large tables β†’ **Field value constraints** – Enforce uniqueness and improve data quality β†’ **Multi-row selection** – Perform batch actions with ease β†’ **Custom CSS/JS** – Style your App Builder projects your way β†’ **Send Email action** : Trigger emails from your app using any SMTP server β†’ **Application debugging** β€” See misconfigurations directly in the editor πŸ“ [Read the full release notes](https://baserow.io/blog/baserow-1-34-release-notes?utm_source=community&utm_medium=social&utm_campaign=release+1.34) [![](https://img.youtube.com/vi/JNStXYDa5p8/maxresdefault.jpg "Baserow 1.34: Field indexes for 10x faster filtering, value constraints, custom code and more") ](https://www.youtube.com/watch?v=JNStXYDa5p8) πŸ’‘ Want your Baserow solution featured? [Submit it here](https://baserow.io/form/PAkRD0k_rRpwVFAunjz54_t7YEKtB7lDtvLI4ni1B14) πŸ™Œ Thanks for all your feedbackβ€”many of these features were inspired directly by you! ---
### Author: ![olgatrykush](https://community.baserow.io/user_avatar/community.baserow.io/olgatrykush/32/219_2.png) [@olgatrykush](https://community.baserow.io/u/olgatrykush) #### Post date: [July 10, 2025, 12:34pm UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/2 "2025-07-10T12:34:41Z")
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### Author: ![ddsgad](https://community.baserow.io/letter_avatar_proxy/v4/letter/d/94ad74/32.png) [@ddsgad](https://community.baserow.io/u/ddsgad) #### Post date: [July 10, 2025, 6:18pm UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/3 "2025-07-10T18:18:08Z")
Thanks for launching field constraints! My quick question is how does this work with the API? Specifically, if we try to enter a value into a unique field via the API that is already in use, does the API simply return back an error? ---
### Author: ![Przemek](https://community.baserow.io/user_avatar/community.baserow.io/przemek/32/3797_2.png) [@Przemek](https://community.baserow.io/u/Przemek) #### Post date: [July 11, 2025, 8:13am UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/4 "2025-07-11T08:13:24Z")
Hey @ddsgad When you make request for field update you can include ```auto "field_constraints": [{"type_name":"unique_with_empty"}], ``` For now this is the only available constraint and it is compatible with: single line, long text, number, date, duration, rating, single select Now: - if field is compatible and there are no duplicates - constraint will be applied and from now on you won’t be able to add non-empty duplicates (you will get `ERROR_FIELD_DATA_CONSTRAINT` in such case) - If there are duplicates (excluding empty fields) - modifying field will return `ERROR_FIELD_CONSTRAINT` error - if you try to apply incompatible constraint you will get `ERROR_INVALID_FIELD_CONSTRAINT` ---
### Author: ![mark119](https://community.baserow.io/user_avatar/community.baserow.io/mark119/32/3331_2.png) [@mark119](https://community.baserow.io/u/mark119) #### Post date: [July 11, 2025, 1:13pm UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/5 "2025-07-11T13:13:28Z")
> [@olgatrykush](#): > > **Custom CSS/JS** – Style your App Builder projects your way The β€œ **Custom CSS/JS** – Style your App Builder projects your way” is floating my boat ---
### Author: ![Schatzi](https://community.baserow.io/user_avatar/community.baserow.io/schatzi/32/4410_2.png) [@Schatzi](https://community.baserow.io/u/Schatzi) #### Post date: [July 14, 2025, 5:35am UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/6 "2025-07-14T05:35:30Z")
> [@olgatrykush](#): > > β†’ **Send Email action** : Trigger emails from your app using any SMTP server It would bei great If you add a Reply-To setting to this action. This will make things a lot easier for building messaging forms. 😬 ---
### Author: ![jrmi](https://community.baserow.io/user_avatar/community.baserow.io/jrmi/32/5042_2.png) [@jrmi](https://community.baserow.io/u/jrmi) #### Post date: [July 15, 2025, 12:25pm UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/7 "2025-07-15T12:25:36Z")
You are right, this is missing. Issue created [Add "reply to" to email action (#3751) Β· Issues Β· Baserow / baserow Β· GitLab](https://gitlab.com/baserow/baserow/-/issues/3751) ---
### Author: ![olgatrykush](https://community.baserow.io/user_avatar/community.baserow.io/olgatrykush/32/219_2.png) [@olgatrykush](https://community.baserow.io/u/olgatrykush) #### Post date: [August 5, 2025, 10:34am UTC](https://community.baserow.io/t/baserow-1-34-is-here-up-to-10x-faster-filters-data-constraints-custom-css-js-more/10687/8 "2025-08-05T10:34:34Z")