26/3/24: FPC 3.0 was released.
27/3/24: new p2, c/1o, 2c/2o, 4c/4o
30/3/24: new p2
2/4/24: revamped osc collection, new factorial-speed ships (c/1o, 2c/2o, 3c/3o, 4c/4o, 6c/6o, 8c/8o), infinite growth (YAY)
3/4/24: added two related 9-bitters (one discovered by confocaloid through soup-search), more SLs, p2s, 2c/4os, and a new c/2d
4/4/24: finished enumerating the 8P6s, new p4s and p5s from D4+2 (me)
18/4/24: new p2, new p4s, c/2o by AlephAlpha that I seemed to forget, new c/2os
22/4/24: added infinite tagalong for a c/1o, new c/1os, 3c/3os, 4c/4os, 8c/8os, rename from other-speeds to other-velocities
23/4/24: new 2c/2o by an anonymous hauler (probably confocaloid), new 9-bit SLs
24/4/24: new p5s, p6s, p10s
25/4/24: added p4s that I seem to have overlooked in C2_4, major formal change to osc collection, new width-2 p4s
26/4/24: more width-2 p4s, some p8s that I have overlooked, added original form of FWK's p8
27/4/24: more oscs from catagolue (due to a 2^28-soup haul), added oscillators with weird kinetic symmetries
28/4/24: new width-2 extensible p2 family
30/4/24: release of April version of collection, added 8-bit p3s (WOW! HOW COULD I MISS THAT??? THEY WERE HERE THIS WHOLE FRIGGIN TIME!!)
7/5/24: new D4X symmetric P4
18/5/24: more c/2ds and one c/3d from lemon41625
21/5/24: many more oscs from apgsearch (!) and more ships from cfind_stdin

Open problems (Oct 2023):

- (2/2/24 done from 4 to 7 cells) Enumerate still-lifes and p2 oscs
- (6/3/24 all 16 standard symmetries done) APGsearch this rule
- (p5, p8, p12 all done on 5/10/23, other periods found were p9, p10, p24) Find new periods
- (4/4/24 done, 64 of them) Find all 8-cell p6 oscillators because finding them manually is a chore
- (2c/2o found on 5/10/23, c/2o found on 7/10/23, c/2d found on 8/1/24, other speeds found were 3c/3o, 4c/4o, 6c/6o, 8c/8o, 12c/12o, 2c/3o, 2c/4o, c/3o, c/3d, c/4o) Find new spaceship speeds
- (not done as of Apr 2024) Find conduits (probably on 56M/F/FT) and maybe some high-period oscillators based on them
- (not done as of Apr 2024) Find a stable eater for any spaceship
- (not done as of Apr 2024) Do some syntheses
- (4-cell objects names on 20/10/23) Name some important patterns
- (not done as of Apr 2024) Prove the rule omniperiodic
- (not done as of Apr 2024) Find a knightship
- (not done as of Apr 2024) Make a macro-spaceship (bonus points if it looks like a giant factorial-ship)

Open problems (Jan 2023):

- (2/2/24 done from 4 to 7 cells) enumerate all patterns up to 7 cells
- (done) apgsearch iC1
- (proven that there are none on 26/2/24) find a 2xn SL that is not 2o$2o!, obo$obo!, o2bo$o2bo!, or obo2bo$o2bobo! (or prove that there are none)
- (not solved as of Apr 2024) find a height-1 finite object that is not the factorial (or prove that there are none)
- (not solved as of Apr 2024) find a p2 with a non-constant population (or prove that there are none)
- (not solved as of Apr 2024) find more periods of height-2 oscillators (or prove that there are no more)
- (not solved as of Apr 2024) find more periods of oscillators in B3/S2V for emulation (or prove that there are no more)
- (found on 30/4/24) find a statored nontrivial p6
- (speeds discovered after this date are 3c/3o, 6c/6o, 8c/8o, 12c/12o, 2c/4o, c/4o) find new periods (ideally prime), sparkers, and speeds
- (done for 1, 2, 3, 4, 6, 8, but not 5 and 7) find factorial-speed (since lightspeed is 3c for R3 Cross, I might as well use factorial-speed) spaceships from c/1o to 8c/8o
- (done) optimize the GIANT 2c/3o ships
- (not done as of Apr 2024) find a stable eater for the factorialship
- (solved on 30/3/2024) find common evolutionary sequences in Factorio
- (no guns yet, wickstretcher found on 2/4/24) find infinite growth of any kind (particularly guns)

New set of open problems:

- Find a slow ship (or at least a p5 orthogonal ship that is not 5c/5o)
- Find 5c/5o or 7c/7o ships
- Find a prime period oscillator (other than 2, 3, or 5)
- Find a height-1 finite object that is not the factorial (or prove that there are none)
- Find a p2 with a non-constant population (or prove that there are none)
- Find more periods of height-2 oscillators (or prove that there are no more other than 1, 2, or 4)
- Find more periods of oscillators in B3/S2V for emulation (or prove that there are no more other than 1 or 2)
- Find a gun
- Find a stable eater for any spaceship
- Find a knightship (preferably (2,1)c/3)