2.3.3.8 release notes
2.3.3.8 Issue 2667  - Fixed an issue with the Apex extract method refactoring when used on statements from a static initializer. Issue 2668  - Fixed an issue with resolution in SOQL  TYPEOF/WHEN  clauses in sub-queries. Issue 2670  - Added specific formal parameter names to  System.WebServiceMock.doInvoke()  in the OST. Note that the OST must be regenerated to see the effect of this change. Issue 2676  - Fixed an issue with the Structure View tool window that was introduced in 2024.3 due to a change in the threading model where it would either show no contents or raise an error. Issue 2681  - Added a new configuration option to disable the new LWC TypeScript support feature. This option is available as  Illuminated Cloud | Configure Application | Other | Lightning Web Components | Lightning Web Components TypeScript support (beta)  and is  enabled by default . When disabled: The  TypeScript  checkbox is not displayed ...