There were quite a number of interesting patterns discovered in 2018, so here's an initial list of entries:

**#01 0E0P metacell**(by Adam P. Goucher): a unit cell which doesn't require a background grid of OFF cells to function, allowing unusual classes of patterns such as quadratic replicators and RROs to be imported into CGoL from other rules.**#02 42883M**(by Adam P. Goucher): a recording-breaking methuselah, discovered using apgsearch.**#03 Jormungant's G-to-H**(by Jormungant): a 2G-to-H converter with a short recovery time, allowing the optimisation of numerous guns.**#04 Quinti-Snarks**(by Tanner Jacobi): period-quintupling reflectors useful for guns.**#05 Period-33 glider gun**(by Arie Paap and Matthias Merzenich): the first true period-33 gun.**#06 Period-52 glider gun**(by Dave Greene, Matthias Merzenich, Adam P. Goucher, Chris Cain, and Entity Valkyrie): the first true period-52 gun.**#07 Reverse caber-tosser**(by Adam P. Goucher, Dave Greene, and Chris Cain): a complex mechanism which theoretically allows any glider-synthesisable pattern to be synthesised in just 35 gliders, by encoding the pattern's complexity into the distance between the gliders rather than their quantity.**#08 Sierpinski triangle generator**(by Luka Okanishi): a breeder that outputs gliders in the shape of a growing Sierpinski triangle.**#09 Sir Robin**(by Adam P. Goucher and Tomas Rokicki): a (2,1)c/6 spaceship, the first elementary knightship discovered in CGoL.

**one week**(which could be extended further if there is sufficient interest) for people to propose any additional entries before the voting starts.

EDIT: Additional entries:

**#10 Bronco**(by Tanner Jacobi): the second elementary G-to-H to be discovered, following the venerable syringian TJ/JT tradition -- discovered by Tanner Jacobi and named by Jeremy Tan;**#11 New self-constructing spaceships**(by Dave Greene): including a loopship and HashLife-friendly variants of the Orthogonoid and Demonoid (no giraffeship yet);**#12 Stable line crosser**(by Dave Greene and Goldtiger997): a modernised rehash of David Bell's periodic circuitry for transmitting a glider across a line of cells;**#13 Cottonmouth**(by A for Ampere): a pushalong for the c/10 copperhead spaceship;**#14 Fast Universal Regulators**(by Dave Greene): ingenious use of pulse dividers to reduce the period of the drive gun of a universal regulator;**#15 5c/9 signal injector**(by Rhombic, Simon Ekström, and Chris Cain): a method of transforming Herschels to 5c/9 drifters with a recovery time of 62;**#16 Minstrel 4**(by Entity Valkyrie): the first manually-assembled knightship;**#17 New high period oscillators**discovered from symmetrical soup searches (by carybe)**#18 Self-constructing strict volatility-1 oscillator**compiled by Goldtiger997, with a record-low V value of 3,506,910;-
**#19 Camelship**(by Chris Cain): a self-constructing spaceship with a new step distance, (3,1), based in part on the volatility-1 oscillator but with a unique design component, a loop-crossing recipe-switching signal; -
**#20 c/2 diagonal telegraph recipe**(by Martin Grant): a 140-glider recipe to create a detectable c/2 diagonal signal traveling non-destructively along a very^N long barge or ship; -
**#21 Goldtiger997's Amazing 2 in 1 Reusable Multipurpose Minstrel Remover and Detector™**(by Goldtiger997); -
**#22 Period-doubling fireship tagalong**(by christoph.r) -
**#23 Infinite distinct diagonal spaceships and infinite distinct orthogonal spaceships**guns (by Adam P. Goucher and Goldtiger997) -
**#24 Huge 2D-extensible wick-supporting pushalong**(by Hartmut Holzwart): minimum length of over a thousand cells. -
**#25 p9 bouncer**(by Matthias Merzenich, carybe, and Noam Elkies): can reflect a p27 glider stream using a p9 oscillator found with apgsearch the same day. -
**#26 p3 bumper**(by Arie Paap and Tanner Jacobi): the first reflector to work at p39. It also enabled the construction of a smaller p57. -
**#27 The first non-monotonic 2c/5 ship**(by Arie Paap, Matthias Merzenich, and Bullet51) -
**#28 Turing Machine Simulator**(by Michael Simkin) -
**#29 p46 gliderless LWSS gun**(by Nathaniel Johnston): the smallest known gliderless LWSS gun. -
**#30 p4 bouncer**(by Arie Paap): the fastest known p4 reflector. -
**#31 p6 180-degree reflector and related guns**(by Arie Paap, Tanner Jacobi, and Jormungant) -
**#32 New honeyfarm hasslers [1], [2], [3]**(by Tanner Jacobi and Matthias Merzenich) -
**#33 New mid-period (7-10) sparkers [1], [2], [3], [4], [5], [6], [7], [8]**(by Dongook Lee, Josh Ball, Martin Grant, Aidan F. Pierce, carybe, and Bullet51) -
**#34 p18-21 pseudo-period LWSS/MWSS/HWSS guns**(by Chris Cain, Adam P. Goucher, Entity Valkyrie, 2718281828, and Goldtiger997): the previous lowest known pseudo-period *WSS gun was p22.