1# RK1808 Release Note 2 3## rk1808_bl31_v1.15.elf 4 5| Date | File | Build commit | Severity | 6| ---------- | --------------------- | ------------ | -------- | 7| 2024-01-17 | rk1808_bl31_v1.15.elf | 56fe57e2a | moderate | 8 9### New 10 111. Add support for DDR extension temperature, it is necessary to use the ddrbin file with extension temperature enabled. 12 13------ 14 15## rk1808_ddr_933MHz_v1.06.bin 16 17| Date | File | Build commit | Severity | 18| ---------- | --------------------------- | ------------ | -------- | 19| 2024-01-17 | rk1808_ddr_933MHz_v1.06.bin | 4d116dc75c | moderate | 20 21### New 22 231. Add support for DDR extension temperature which should use ddrbin_tool configuration "ext_temp_ref" to enable. 24 25------ 26 27## rk1808_bl32_v2.03.bin 28 29| Date | File | Build commit | Severity | 30| ---------- | :-------------------- | ------------ | --------- | 31| 2023-08-28 | rk1808_bl32_v2.03.bin | b5340fd65 | important | 32 33### New 34 351. Support pstore for optee log. 362. Enable dynamic SHM. 373. Support check ta encryption key is written. 38 39------ 40 41## rk1808_bl32_v2.02.bin 42 43| Date | File | Build commit | Severity | 44| ---------- | :-------------------- | ------------ | --------- | 45| 2022-09-16 | rk1808_bl32_v2.02.bin | d84087907 | important | 46 47### Fixed 48 49| Index | Severity | Update | Issue description | Issue source | 50| ----- | --------- | ------------------------------------------------------------ | ------------------------------------------------------------ | ------------ | 51| 1 | important | Solve the problem that OPTEE is stuck during startup when printing is closed | User use /rkbin/tools/ddrbin_tool to close printing , then rk_atags will notify OPTEE to disable printing, When OPTEE starts, it will be stuck and unable to enter U-Boot | - | 52 53------ 54