diff --git a/docs/src/firmware/applicable.rst b/docs/src/firmware/applicable.rst
index a4f4849..8424c2e 100644
--- a/docs/src/firmware/applicable.rst
+++ b/docs/src/firmware/applicable.rst
@@ -15,13 +15,14 @@ MYNTEYE_S_2.0.0_alpha1.img   2.0.0-alpha1 (2.0.0-rc1 ~ 2.0.0-alpha1)
 MYNTEYE_S_2.0.0_alpha0.img   2.0.0-alpha0
 MYNTEYE_S_2.2.2.img          2.3.0 (2.2.2-rc1 ~ 2.3.0)
 MYNTEYE_S_2.3.0.img          2.3.0 (2.2.2-rc1 ~ 2.3.3)
-MYNTEYE_S_2.4.0.img          2.3.4
+MYNTEYE_S_2.4.0.img          2.3.4 (2.3.4 ~ 2.3.5)
 ============================ ========================
 
 ============================ ========================
 S2100 Firmwares                    SDK Version
 ============================ ========================
 MYNTEYE_S2100_1.1.img            2.3.4
+MYNTEYE_S2100_1.2.img            2.3.5
 ============================ ========================
 
 
diff --git a/docs/src/firmware/upgrade.rst b/docs/src/firmware/upgrade.rst
index aa6eb2e..e8f544b 100644
--- a/docs/src/firmware/upgrade.rst
+++ b/docs/src/firmware/upgrade.rst
@@ -12,7 +12,7 @@ You can download the firmware and MYNT EYE TOOL installation package in the ``Fi
   Firmwares/
   ├─Checksum.txt                 # file checksum
   ├─MYNTEYE_S_2.4.0.img          # S1030 firmware
-  ├─MYNTEYE_S2100_1.1.img        # S2100 firmware
+  ├─MYNTEYE_S2100_1.2.img        # S2100 firmware
   ├─...
   └─setup.zip                    # MYNTEYE TOOL zip
 
diff --git a/docs/src/sdk/changelog.rst b/docs/src/sdk/changelog.rst
index d2c9a67..d7bbb61 100644
--- a/docs/src/sdk/changelog.rst
+++ b/docs/src/sdk/changelog.rst
@@ -3,8 +3,27 @@
 Changelog
 =========
 
-2019-03-18
-----------
+2019-04-01(v2.3.5)
+-------------------
+
+1. Improve camera info.
+
+2. Modify SGBM/BM parameters by yaml file.
+
+3. Add opening multi devices launch file in ROS.
+
+4. Add setting IIC address API of S210A.
+
+5. Add image/imu flag of external time source.
+
+6. Add LaserScan sample for S1030.
+
+7. Modify default orientation of point in ROS.
+
+
+
+2019-03-18(v2.3.4)
+-------------------
 
 
 1. Add API to get subsidiary chip&ISP's version(Depend on S2100/S210A 1.1 firmware & 1.0 subsidiary chip firmware).