[Release] release for dag v2.0.0-alpha

[sanlee42]

Pull request type

Please check the type of change your PR introduces:

• Bugfix
• Feature
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other (please describe):

What is the current behavior?

Issue Number: N/A

What is the new behavior?

Other information

[simonjiao]

Looks great!

[github-actions]

Benchmark for f11f052

Click to view benchmark

Test	Base	PR	%
accumulator_append	1455.4±199.97µs	1249.8±209.89µs	-14.13%
block_apply/block_apply_10	495.4±87.53ms	525.1±74.11ms	+6.00%
block_apply/block_apply_1000	64.8±1.78s	63.7±2.61s	-1.70%
get_with_proof/db_store	70.3±13.27µs	85.4±9.48µs	+21.48%
get_with_proof/mem_store	69.5±7.12µs	62.4±7.66µs	-10.22%
put_and_commit/db_store/1	213.3±12.09µs	201.6±20.64µs	-5.49%
put_and_commit/db_store/10	1768.3±266.38µs	1840.6±193.13µs	+4.09%
put_and_commit/db_store/100	17.5±1.21ms	16.0±1.42ms	-8.57%
put_and_commit/db_store/5	930.4±132.95µs	944.4±86.97µs	+1.50%
put_and_commit/db_store/50	8.8±0.78ms	8.6±1.11ms	-2.27%
put_and_commit/mem_store/1	121.0±12.40µs	131.0±14.83µs	+8.26%
put_and_commit/mem_store/10	1214.4±188.39µs	1167.7±81.12µs	-3.85%
put_and_commit/mem_store/100	11.5±1.18ms	11.6±0.99ms	+0.87%
put_and_commit/mem_store/5	539.1±119.56µs	607.5±68.92µs	+12.69%
put_and_commit/mem_store/50	5.6±0.90ms	5.7±0.14ms	+1.79%
query_block/query_block_in(10)_times(100)	7.9±1.43ms	8.1±0.61ms	+2.53%
query_block/query_block_in(10)_times(1000)	64.0±9.52ms	74.4±8.82ms	+16.25%
query_block/query_block_in(10)_times(10000)	701.3±58.28ms	788.6±110.06ms	+12.45%
query_block/query_block_in(1000)_times(100)	1974.5±208.01µs	2.1±0.12ms	+6.36%
query_block/query_block_in(1000)_times(1000)	19.3±3.25ms	21.9±1.09ms	+13.47%
query_block/query_block_in(1000)_times(10000)	170.0±13.24ms	227.6±2.74ms	+33.88%
storage_transaction	1633.5±663.40µs	2.1±0.98ms	+28.56%
vm/transaction_execution/1	712.2±30.14ms	539.4±71.72ms	-24.26%
vm/transaction_execution/10	211.0±10.21ms	194.4±11.66ms	-7.87%
vm/transaction_execution/20	179.1±8.52ms	175.9±12.49ms	-1.79%
vm/transaction_execution/5	272.5±11.91ms	240.2±18.23ms	-11.85%
vm/transaction_execution/50	213.4±6.94ms	210.7±9.95ms	-1.27%