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# sch-rnd - state history

This page is the archived variant of state.html, showing how we reached our first stable release.

This closes the initial intensive development phase (sponsored by nlnet/NGI0).

Dates are in yyyy-mm-dd form.

date | event/phase
Plans for future events
2023 May | First sable release: 1.0.0
Current phase, recent events
2022-08-18 | Beta testing phase starts for simple PCB workflows with pcb-rnd
2022-09-21 | released 0.9.2 (beta testing)
2022-11-09 | released 0.9.3 (beta testing)
2023-02-08 | released 0.9.4 (beta testing)
2023-03-29 | released 0.9.5 (beta testing)
Past events
2017-06-30 | Announcement, call for contributors
2017-07-20 | discussion: design process
2017-07-26 | discussion: main components: system overview draft implementation details and rationale
2017-07-29 | discussion: schematics data: spec implementation details and rationale
2017-08-23 | discussion: drawing primitives: spec implementation details and rationale
2017-09-08 | discussion: attributes: spec implementation details and rationale
2017-09-22 | discussion: netlist spec (no implementation details and rationale)
2017-10-10 | discussion: hierarchic schematics spec implementation details and rationale
2017-11-02 | discussion: device mapping - slotting, the transistor problem, heavy vs. light symbols spec implementation details and rationale
2017-11-27 | discussion: ripple annotation spec implementation details and rationale
2018-02-19 | discussion: bus support - conventions and pseudo-hierarchy (mostly already convered by chapter 2) spec implementation details and rationale
2018-03-05 | discussion: is anything left out, not addressed?
2022-01-12 | Initial development to reach beta testing state by end of October 2022
2022-03-28 | Upcoming alpha release
2022-05-06 | 0.8.1: second alpha release
2022-06-08 | 0.8.2-alpha: third alpha release
2022-06-18 | 0.8.3-alpha: fourth alpha release
2022-07-16 | 0.8.4-alpha: fifth alpha release # sch-rnd - plans for 2023 With the support of nlnet, the following features have been implemented in 2023 and 2024: hierarchic design (sheets referencing other sheets as "subsheets" for repetitive parts) [1.0.5] alien file format: load sheets of tinycad and altium and orcad [1.0.4] non-graphical sheets (data or scripted) [1.0.1] raw spice target and export (ngspice and gnucap) [1.0.1] simulation target (SPICE) [1.0.2] symbol attribute based build options and DNP for the PCB workflow [1.0.2] symbol editor mode (directly opening a symbol file for interative edit) [1.0.3] back annotation upgade from pcb-rnd [1.0.3] symbol attribute based alternate MCU pin function system [1.0.3]