Youer for Minecraft 1.21.1

200 builds of Youer published for Minecraft 1.21.1, newest first. Every download links to the project’s own release.

Latest build: #427
Java required: Java 21 or newer
Builds: 200
Newest published: 25 May 2026

Youer builds for 1.21.1

Newest first. The checksum is the project's own, where it publishes one.

Build	Channel	Published	Size	Download
#427	release	25 May 2026	123.6 MB	server.jar
#426	release	29 May 2026	123.6 MB	server.jar
#425	release	21 May 2026	123.6 MB	server.jar
#424	release	20 May 2026	123.6 MB	server.jar
#423	release	19 May 2026	123.6 MB	server.jar
#422	release	15 May 2026	123.6 MB	server.jar
#421	release	13 May 2026	123.6 MB	server.jar
#420	release	13 May 2026	123.6 MB	server.jar
#419	release	12 May 2026	123.6 MB	server.jar
#418	release	12 May 2026	123.6 MB	server.jar
#417	release	12 May 2026	123.6 MB	server.jar
#416	release	12 May 2026	123.6 MB	server.jar
#415	release	11 May 2026	123.6 MB	server.jar
#414	release	11 May 2026	123.6 MB	server.jar
#413	release	10 May 2026	123.6 MB	server.jar
#412	release	9 May 2026	123.5 MB	server.jar
#411	release	8 May 2026	123.5 MB	server.jar
#410	release	8 May 2026	123.5 MB	server.jar
#409	release	8 May 2026	123.5 MB	server.jar
#408	release	8 May 2026	123.5 MB	server.jar
#407	release	8 May 2026	123.5 MB	server.jar
#406	release	8 May 2026	123.5 MB	server.jar
#405	release	8 May 2026	123.5 MB	server.jar
#404	release	7 May 2026	123.5 MB	server.jar
#403	release	2 May 2026	123.5 MB	server.jar
#402	release	2 May 2026	123.5 MB	server.jar
#401	release	2 May 2026	123.5 MB	server.jar
#400	release	29 Apr 2026	123.5 MB	server.jar
#399	release	28 Apr 2026	123.5 MB	server.jar
#398	release	27 Apr 2026	123.5 MB	server.jar
#397	release	27 Apr 2026	123.5 MB	server.jar
#396	release	26 Apr 2026	123.5 MB	server.jar
#395	release	26 Apr 2026	123.4 MB	server.jar
#394	release	25 Apr 2026	123.4 MB	server.jar
#393	release	23 Apr 2026	123.4 MB	server.jar
#392	release	23 Apr 2026	123.4 MB	server.jar
#391	release	23 Apr 2026	123.4 MB	server.jar
#390	release	22 Apr 2026	123.4 MB	server.jar
#389	release	21 Apr 2026	123.4 MB	server.jar
#388	release	21 Apr 2026	123.4 MB	server.jar
#387	release	21 Apr 2026	123.4 MB	server.jar
#386	release	19 Apr 2026	123.4 MB	server.jar
#385	release	19 Apr 2026	123.4 MB	server.jar
#384	release	19 Apr 2026	123.4 MB	server.jar
#383	release	19 Apr 2026	123.4 MB	server.jar
#382	release	18 Apr 2026	123.4 MB	server.jar
#381	release	18 Apr 2026	123.4 MB	server.jar
#380	release	16 Apr 2026	123.4 MB	server.jar
#379	release	15 Apr 2026	123.4 MB	server.jar
#378	release	14 Apr 2026	123.4 MB	server.jar
#377	release	13 Apr 2026	123.4 MB	server.jar
#376	release	13 Apr 2026	123.4 MB	server.jar
#375	release	12 Apr 2026	123.6 MB	server.jar
#374	release	8 Apr 2026	123.6 MB	server.jar
#373	release	8 Apr 2026	123.6 MB	server.jar
#372	release	7 Apr 2026	123.6 MB	server.jar
#371	release	7 Apr 2026	123.6 MB	server.jar
#370	release	6 Apr 2026	123.6 MB	server.jar
#369	release	5 Apr 2026	123.6 MB	server.jar
#368	release	5 Apr 2026	123.6 MB	server.jar
#367	release	28 Mar 2026	123.6 MB	server.jar
#366	release	28 Mar 2026	123.6 MB	server.jar
#365	release	24 Mar 2026	123.6 MB	server.jar
#364	release	22 Mar 2026	123.6 MB	server.jar
#363	release	19 Mar 2026	123.6 MB	server.jar
#362	release	17 Mar 2026	123.6 MB	server.jar
#361	release	17 Mar 2026	123.6 MB	server.jar
#360	release	16 Mar 2026	123.6 MB	server.jar
#359	release	15 Mar 2026	123.6 MB	server.jar
#358	release	14 Mar 2026	123.6 MB	server.jar
#357	release	13 Mar 2026	123.6 MB	server.jar
#356	release	13 Mar 2026	123.6 MB	server.jar
#355	release	12 Mar 2026	123.6 MB	server.jar
#354	release	10 Mar 2026	123.6 MB	server.jar
#353	release	9 Mar 2026	123.6 MB	server.jar
#352	release	9 Mar 2026	123.6 MB	server.jar
#351	release	9 Mar 2026	123.6 MB	server.jar
#350	release	8 Mar 2026	123.6 MB	server.jar
#349	release	7 Mar 2026	123.6 MB	server.jar
#348	release	7 Mar 2026	123.6 MB	server.jar
#347	release	6 Mar 2026	123.6 MB	server.jar
#346	release	6 Mar 2026	123.6 MB	server.jar
#345	release	5 Mar 2026	123.6 MB	server.jar
#344	release	3 Mar 2026	123.6 MB	server.jar
#343	release	2 Mar 2026	123.6 MB	server.jar
#342	release	1 Mar 2026	123.6 MB	server.jar
#341	release	1 Mar 2026	123.6 MB	server.jar
#340	release	1 Mar 2026	123.6 MB	server.jar
#339	release	25 Feb 2026	123.6 MB	server.jar
#338	release	25 Feb 2026	123.6 MB	server.jar
#337	release	23 Feb 2026	123.6 MB	server.jar
#336	release	22 Feb 2026	123.6 MB	server.jar
#335	release	18 Feb 2026	123.6 MB	server.jar
#334	release	18 Feb 2026	123.6 MB	server.jar
#333	release	18 Feb 2026	123.6 MB	server.jar
#332	release	18 Feb 2026	123.6 MB	server.jar
#331	release	17 Feb 2026	123.6 MB	server.jar
#330	release	16 Feb 2026	123.6 MB	server.jar
#329	release	16 Feb 2026	123.6 MB	server.jar
#328	release	14 Feb 2026	123.6 MB	server.jar
#327	release	14 Feb 2026	123.6 MB	server.jar
#326	release	14 Feb 2026	123.6 MB	server.jar
#325	release	13 Feb 2026	123.6 MB	server.jar
#324	release	13 Feb 2026	123.6 MB	server.jar
#323	release	13 Feb 2026	123.6 MB	server.jar
#322	release	13 Feb 2026	123.6 MB	server.jar
#321	release	12 Feb 2026	123.6 MB	server.jar
#320	release	11 Feb 2026	123.6 MB	server.jar
#319	release	10 Feb 2026	123.6 MB	server.jar
#318	release	10 Feb 2026	123.6 MB	server.jar
#317	release	10 Feb 2026	123.6 MB	server.jar
#316	release	9 Feb 2026	123.6 MB	server.jar
#315	release	9 Feb 2026	123.6 MB	server.jar
#314	release	9 Feb 2026	123.6 MB	server.jar
#313	release	9 Feb 2026	123.6 MB	server.jar
#312	release	8 Feb 2026	123.6 MB	server.jar
#311	release	7 Feb 2026	123.6 MB	server.jar
#310	release	7 Feb 2026	123.6 MB	server.jar
#309	release	6 Feb 2026	123.6 MB	server.jar
#308	release	6 Feb 2026	123.6 MB	server.jar
#307	release	6 Feb 2026	123.6 MB	server.jar
#306	release	5 Feb 2026	123.7 MB	server.jar
#305	release	5 Feb 2026	123.7 MB	server.jar
#304	release	4 Feb 2026	123.7 MB	server.jar
#303	release	25 Dec 2025	116.7 MB	server.jar
#302	release	25 Dec 2025	116.7 MB	server.jar
#301	release	25 Dec 2025	116.7 MB	server.jar
#300	release	25 Dec 2025	116.7 MB	server.jar
#299	release	26 Dec 2025	116.7 MB	server.jar
#298	release	27 Dec 2025	116.7 MB	server.jar
#297	release	27 Dec 2025	116.7 MB	server.jar
#296	release	28 Dec 2025	123.8 MB	server.jar
#295	release	28 Dec 2025	123.8 MB	server.jar
#294	release	29 Dec 2025	123.8 MB	server.jar
#293	release	30 Dec 2025	123.8 MB	server.jar
#292	release	31 Dec 2025	123.8 MB	server.jar
#291	release	31 Dec 2025	123.8 MB	server.jar
#290	release	31 Dec 2025	123.8 MB	server.jar
#289	release	31 Dec 2025	123.8 MB	server.jar
#288	release	1 Jan 2026	123.8 MB	server.jar
#287	release	1 Jan 2026	123.8 MB	server.jar
#286	release	3 Jan 2026	123.8 MB	server.jar
#285	release	3 Jan 2026	123.8 MB	server.jar
#284	release	3 Jan 2026	123.8 MB	server.jar
#283	release	3 Jan 2026	123.8 MB	server.jar
#282	release	3 Jan 2026	123.7 MB	server.jar
#281	release	3 Jan 2026	123.7 MB	server.jar
#280	release	3 Jan 2026	123.7 MB	server.jar
#279	release	3 Jan 2026	123.7 MB	server.jar
#278	release	4 Jan 2026	123.7 MB	server.jar
#277	release	6 Jan 2026	123.7 MB	server.jar
#276	release	7 Jan 2026	123.8 MB	server.jar
#275	release	7 Jan 2026	123.8 MB	server.jar
#274	release	7 Jan 2026	123.8 MB	server.jar
#273	release	7 Jan 2026	123.8 MB	server.jar
#272	release	7 Jan 2026	123.8 MB	server.jar
#271	release	7 Jan 2026	123.8 MB	server.jar
#270	release	7 Jan 2026	123.8 MB	server.jar
#269	release	8 Jan 2026	123.8 MB	server.jar
#268	release	8 Jan 2026	123.8 MB	server.jar
#267	release	8 Jan 2026	123.8 MB	server.jar
#266	release	8 Jan 2026	123.8 MB	server.jar
#265	release	8 Jan 2026	123.8 MB	server.jar
#264	release	8 Jan 2026	123.8 MB	server.jar
#263	release	8 Jan 2026	123.8 MB	server.jar
#262	release	9 Jan 2026	123.8 MB	server.jar
#261	release	9 Jan 2026	123.8 MB	server.jar
#260	release	9 Jan 2026	123.8 MB	server.jar
#259	release	11 Jan 2026	123.8 MB	server.jar
#258	release	12 Jan 2026	123.8 MB	server.jar
#257	release	16 Jan 2026	123.8 MB	server.jar
#256	release	16 Jan 2026	123.8 MB	server.jar
#255	release	16 Jan 2026	123.8 MB	server.jar
#254	release	16 Jan 2026	123.8 MB	server.jar
#253	release	16 Jan 2026	123.8 MB	server.jar
#252	release	17 Jan 2026	123.8 MB	server.jar
#251	release	17 Jan 2026	123.8 MB	server.jar
#250	release	18 Jan 2026	123.8 MB	server.jar
#249	release	19 Jan 2026	123.8 MB	server.jar
#248	release	22 Jan 2026	123.8 MB	server.jar
#247	release	23 Jan 2026	123.8 MB	server.jar
#246	release	25 Jan 2026	123.8 MB	server.jar
#245	release	26 Jan 2026	123.7 MB	server.jar
#244	release	27 Jan 2026	123.7 MB	server.jar
#243	release	27 Jan 2026	123.7 MB	server.jar
#242	release	28 Jan 2026	123.7 MB	server.jar
#241	release	28 Jan 2026	123.7 MB	server.jar
#240	release	30 Jan 2026	123.7 MB	server.jar
#239	release	30 Jan 2026	123.7 MB	server.jar
#238	release	30 Jan 2026	123.7 MB	server.jar
#237	release	30 Jan 2026	123.7 MB	server.jar
#236	release	1 Feb 2026	123.7 MB	server.jar
#235	release	1 Feb 2026	123.7 MB	server.jar
#234	release	2 Feb 2026	123.7 MB	server.jar
#233	release	2 Feb 2026	123.7 MB	server.jar
#232	release	3 Feb 2026	123.7 MB	server.jar
#231	release	3 Feb 2026	123.7 MB	server.jar
#230	release	3 Feb 2026	123.7 MB	server.jar
#229	release	3 Feb 2026	123.7 MB	server.jar
#228	release	3 Feb 2026	123.7 MB	server.jar

Youer on 1.21.1: common questions

Does Youer support Minecraft 1.21.1?

Yes. 200 builds have been published for 1.21.1, the newest being build 427. This is not a declared claim: each build below is a real file the project released for this version.

Which Java version do I need for Youer 1.21.1?

Java 21 or newer. The requirement comes from Minecraft 1.21.1 itself rather than from Youer, so it applies to any server software running this version. A newer Java than that is fine.

Which Youer build should I run on 1.21.1?

The newest one, build 427, published 2 mo ago. Later builds for the same Minecraft version are bug fixes and performance work, so there is rarely a reason to run an older one deliberately.

Is this download official?

Yes. Every link points at Youer's own release or API. MCReference does not mirror, re-host or repackage a jar; where the project publishes a SHA-256 we show it so you can verify the file you got.