remaining works for the v0.1 release. * [x] expand 0.5.1 * [x] write 0.6.1 * [x] write 0.8 * [x] write 0.9 * [ ] briefly write 1 * [ ] write 2.3 * [ ] write 2.4 * [ ] write 4.2 * [ ] write 4.4 * [ ] write 4.5 * [x] write 5.1 * [x] expand A.9 * [x] expand B * [x] expand D
remaining works for the v0.1 release.