# Launch client jar invalid

**URL:** <https://forum.inductiveautomation.com/t/launch-client-jar-invalid/109145>\
**Category:** Ignition 8.3 Early Access\
**Created:** [July 30, 2025, 1:50pm UTC](https://forum.inductiveautomation.com/t/launch-client-jar-invalid/109145 "2025-07-30T13:50:56Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![avaughn](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/avaughn/32/38972_2.png) [@avaughn](https://forum.inductiveautomation.com/u/avaughn)\
**Post date:** [July 30, 2025, 2:49pm UTC](https://forum.inductiveautomation.com/t/launch-client-jar-invalid/109145/5 "2025-07-30T14:49:14Z")

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Looks like this did get a section in the User Manual. The 8.3 manual does specifically mention 8.1.33 and older not working with the default of `MODERATE`. In the 8.1 launchers the default was set to `LENIENT`

[8.1 Docs](https://docs.inductiveautomation.com/docs/8.1/launchers-and-workstation#signature-verification)

[8.3 Docs](https://docs.inductiveautomation.com/docs/8.3/launchers-and-workstation#signature-verification)

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