Merge branch 'develop' into dependabot/cargo/all-dependencies-6129c11954

Author: zhangsoledad

docs/platform-support.md

@@ -20,11 +20,12 @@ We ensure that these platforms will satisfy the following requirements:
 
 | OS | Arch | CKB VM Mode |
 | --- | --- | --- |
-| Ubuntu 18.04 | x64 | ASM |
+| Ubuntu 20.04 | x64 | ASM |
 | macOS | x64 | ASM |
+| macOS | AArch64 | ASM |
 | Windows | x64 | ASM |
 
-The Tier 1 requires CPU to support at least SSE4.2, and AVX is recommended.
+The Tier 1 x64 platforms require CPU to support at least SSE4.2, and AVX is recommended.
 
 ## Tier 2
 
@@ -34,20 +35,17 @@ The official binary releases are also provided for the Tier 2 platforms.
 
 | OS | Arch | CKB VM Mode |
 | --- | --- | --- |
-| Ubuntu 20.04 | x64 | ASM |
-| Debian Stretch | x64 | ASM |
-| Debian Buster | x64 | ASM |
-| Arch Linux | x64 | ASM |
+| Linux (glibc) | AArch64 | ASM |
 | CentOS 7 | x64 | ASM |
-| Ubuntu 20.04 | AArch64 | ASM |
-| macOS | AArch64 | ASM |
 
-The Tier 2 requires CPU to support following instructions: call (MODE64), cmovbe (CMOV), xorps (SSE1), movq (SSE2). The provided binaries cannot run on the platforms without these instructions.
+> **Note**: CentOS has reached its end of life. Binary releases for CentOS are deprecated and will be removed in a future version.
+
+The Tier 2 x64 platforms require CPU to support following instructions: call (MODE64), cmovbe (CMOV), xorps (SSE1), movq (SSE2). The provided binaries cannot run on the platforms without these instructions.
 
 ## Tier 3
 
 Tier 3 platforms are those which the Rust code base has support for,  but which are not built or tested automatically. Or they have no the working ASM mode of CKB VM thus they are not guaranteed to fully conform to the CKB consensus.
 
 | OS | Arch | CKB VM Mode |
 | --- | --- | --- |
-| Any OS in Tier 1 and 2 | AArch64 | Rust |
+| Any | Any | Rust |