Edit: 2.3 codes now expired but the other codes may still be available
Codes from the Honkai Star Rail 2.3 livestream! Will expire quickly as usual so redeem quick.
https://hsr.hoyoverse.com/gift?code=3AJUD36P766B
100 Stellar Jade and 50,000 Credits
https://hsr.hoyoverse.com/gift?code=DA3VV367PP7X
100 Stellar Jade and x5 Traveler's Guide
https://hsr.hoyoverse.com/gift?code=QB3DC36PP673
100 Stellar Jade and x4 Refined Aether
Also found some additional codes that I managed to redeem:
https://hsr.hoyoverse.com/gift?code=FA2CU3P7P6QT
50 Stellar Jade, 10,000 Credits
https://hsr.hoyoverse.com/gift?code=VAJEGY4MNMDK
50 Stellar Jade, 10,000 Credits
https://hsr.hoyoverse.com/gift?code=HSRGFN24
3 Traveler's Guide, 3 Refined Aether, 30,000 Credits
https://hsr.hoyoverse.com/gift?code=ROBININSIDE
2 Adventure Log, 10,000 Credits
https://hsr.hoyoverse.com/gift?code=LOVEFROMROBIN
3 Firmament Note, 10,000 Credits
https://hsr.hoyoverse.com/gift?code=STARRAILGIFT
50 Stellar Jade, 2 Traveler's Guide, 5 Bottled Soda, 10,000 Credits
Enjoy!
Thanks mate - may RNGesus bless you.