The T-mobile LG leon H345 has just got the v10k software Update.
The Update brings your LG LEON H345 to software version H34510k with some bug fixes and security patch. It is still Android L Update.
The Update is now available via OTA or through LG Bridge.
You need to install XDM download manager to download the firmware from LG server, because LG has made some changes in its server settings now.