I've always stuck with the stable releases of CHDK, as an unskilled end user. I double-checked the "readme" and found interesting comments on the state of the beta - might help other users with what to expect:
--- ToDo ------------------------------------------------------------
* Multi Partition Support (Autoboot CHDK with 2 Partitions on SD-Card)
* "Debug Parameters -> Create card with two partitions" does cause shutdown (WriteSDCard address wrong?)
* tweak Color Palette (CAM_BITMAP_PALETTE), CHDK OSD Colors does not fit and are different in playback/record mode
* Check Propcase, at least one Propcase has changed (maybe it time for propcase4.h)
* os.remove() does delete files but fail to delete directory (like SX210, G11 and other new cameras too), tested with llibtst.lua
* only Video Quality Override does work, Video Bitrate Override does nothing (affects more DryOS Cameras?)
* Edge Overlay in correct only in Widescreen Setting ("Recording pixels"), else Edge Overleft has left offset
* Histogram works, but Canon Color Palette does not have required colors for correct display
* Zebra does not work (shows some shatterd dark (grey) pixel) -
http://chdk.setepontos.com/index.php?topic=3410.msg32043#msg32043* find PROPCASE_ASPECT_RATIO to fix Zebra & co (and Y-Correction Fix like SX30 suggested by philmoz)
* test "shoot_full" & "shoot_half" commands behave like they should
* sometimes Exception (Vector 0x04) on exiting ALT Mode after script execution
* Problems with some Scripts (probaly fixed since Stack Size commit)
* Aperture Override aperture not working ?
* ND Filter State not working ?
* Remote Function does continuous mode only after second "Remote Shutter" (what is correct behavior on other Cameras?)
* Override Subj. Dist. Value (MF) not working ?
* probably more stuff to fix ;-)
--- Tested CHDK Functions ------------------------------------------
* CHDK PTP with ptpcam
* Mode Switch (Playback / Record) does work
* All functions seems to work
* create badpixel for DNG without script does work
* Quality Override "super fine" does work (bigger filesize, less JPG artifacts, correct EXIF)
* "Make card bootable" does work
It would be good if the readme was edited to say the Shutter button works for User Menu Edit add/delete - I couldn't find any reference to it and found it by accident. I wasn't aware of the Quality Override to "superfine", and am going to try it out.
