[release] v0.7.26 (taichi-dev#2511)

[release] v0.7.25 (taichi-dev#2482)

[release] v0.7.24 (taichi-dev#2469)

[release] v0.7.23 (taichi-dev#2459)

[release] v0.7.22 (taichi-dev#2445)

[release] v0.7.21 (taichi-dev#2409)

[release] v0.7.20 (taichi-dev#2356)

[release] v0.7.19 (taichi-dev#2339)

[release] v0.7.18 (taichi-dev#2309)

[release] v0.7.17 (taichi-dev#2295)