Leveldb version too old

[utolp]

leveldb 1.20 is not bundled in leveldbjni.
Change log after v1.18:

• 1.20
  • Convert documentation to markdown.
  • Implement support for Intel crc32 instruction (SSE 4.2).
  • Limit the number of read-only files the POSIX Env will have open.
  • Add option for maximum file size.
• 1.19
  • Fix problems in LevelDB's caching code.
  • Fix LevelDB build when asserts are enabled in release builds. .
  • Change std::uint64_t to uint64_t .
  • Fixes a bug encountered when reading records from leveldb files that have been split, as in a [] input task split.
  • Deleted redundant null ptr check prior to delete.
  • Fix signed/unsigned mismatch on VC++ builds.
  • Putting build artifacts in subdirectory.
  • Added continuous build integration via Travis CI.
  • log compaction output file's level along with number.
  • Misc. improvements to README file.
  • Fix Android/MIPS build .
  • Only compiling TrimSpace on linux .
  • Use xcrun to determine Xcode.app path instead of using a hardcoded path.
  • Add "approximate-memory-usage" property to leveldb::DB::GetProperty.
  • Add leveldb::Cache::Prune.
  • Fix size_t/int comparison/conversion issues.
  • Added leveldb::Status::IsInvalidArgument() method.
  • Suppress error reporting after seeking but before a valid First or Full record is encountered.
  • #include.
  • Now attempts to reuse the preceding MANIFEST and log file when re-opened.
  • Add benchmark that measures cost of repeatedly opening the database.
  • Added a new fault injection test.
  • Add arm64 support to leveldb.

[masonExcelsia]

If we change the version to 1.20, is there any extra coding changes?

[utolp]

@masonExcelsia
Newest java lib for leveldb is 1.18.
LevelDB C++ version is 1.20 now.
So we cannot change it to 1.20 for now.