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al_version (ppletoader version), saved on disc as version, is a number formerly used in versions as a caching identifier, to uniquely identify .jar files to be cached.
It is needed because the game used to be hosted on the Minecraft website as an applet. The al_version value was used to tell the LWJGL AppletLoader when to clear its cache so LWJGL and client jars could be updated automatically.
al_version is a number given as a parameter to the LWJGL AppletLoader in the HTML code of the applet page.[1] It is used to specify a unique version for each jar file to cache them for re-use. (To save on downloads, the site would used a cached version on disc if the game is marked as being the same as the last time it was downloaded.) If the stored al_version matches the latest jar files, those jar files are re-used; otherwise the previously saved jars are removed from the cache and new ones are downloaded.
From Classic through most of Infdev, the al_version was a positive floating point number. Starting from Infdev 20100629, al_version proper was no longer used, however a caching ID still remained, taking the form of the current timestamp of the version's release.
The al_version may be found in the HTML of the game's web applet, as <param name="al_version" value="[al_version_id]" />
In Classic through Infdev, the al_version may be found on disc in the temporary directory as version. The subpath differs based on the applet page the game is being played on. See Applet ยง Storage locations.
Starting from Infdev 20100629, with the change from float al_version to a timestamped cache ID, it is now located on disc at %appdata%/.minecraft/bin/ (used by minecraft.net/game/ and the offline launcher).
[edit]
| Game version | al_version |
|---|---|
| Infdev 20100227-1414 | Unknown |
| Infdev 20100227-1433 | 1.108 |
| Infdev 20100313 | 1.109 |
| Infdev 20100316 | 1.111 |
| Infdev 20100320 | 1.112 |
| Infdev 20100321 | 1.114 |
| Infdev 20100325-1545 | 1.115 |
| Infdev 20100325-1640 | 1.116 |
| Infdev 20100327 | 1.118 |
| Infdev 20100330-1203 | 1.119 |
| Infdev 20100330-1611 | 1.12 |
| Infdev 20100413-1951 | 1.121 |
| Infdev 20100413-1953 | 1.122 |
| Infdev 20100414 | 1.123 |
| Infdev 20100415 | 1.124 |
| Infdev 20100420 | 1.125 |
| Infdev 20100607 | 1.126 |
| Infdev 20100608 | 1.127 |
| Infdev 20100611 | 1.128 |
| Infdev 20100615 | 1.129 |
| Infdev 20100616-1808 | 1.13 |
| Infdev 20100616-2210 | 1.13 |
| Infdev 20100617-1205 | 1.13 |
| Infdev 20100617-1531 | 1.131 |
| Infdev 20100618 | 1.132 |
| Infdev 20100624 | 1.133 |
| Infdev 20100625-0922 | 1.134 |
| Infdev 20100625-1917 | 1.135 |
| Infdev 20100627 | 1.136 |
| Infdev 20100629 | 1.137 |
| Game version | ID |
|---|---|
| Infdev 20100629 | 1277837875000 |
| Infdev 20100630-1340 | 1277901606000 |
| Infdev 20100630-1835 | 1277919303000 |
| Alpha v1.0.1 | Unknown |
| Alpha v1.0.1_01 | 1278109196000 |
| Alpha v1.0.2 | Unknown |
| Alpha v1.0.2_01 | 1278419244000 |
| Alpha v1.0.2_02 | 1278438272000 |
| Alpha v1.0.3 | 1278525565000 |
| Alpha v1.0.4 | 1278684774000 |
| Alpha v1.0.5 | Unknown (orig.) 1279054191000 (reup.) |
| Alpha v1.0.5_01 | 1279136788000 |
| Alpha v1.0.6 | 1279276166000 |
| Alpha v1.0.6_01 | 1279382604000 |
| Alpha v1.0.6_02 | Unknown |
| Alpha v1.0.6_03 | 1279387500000 |
| Alpha v1.0.7 | Unknown |
| Alpha v1.0.8 | Unknown |
| Alpha v1.0.8_01 | 1279579238000 |
| Alpha v1.0.9 | 1279708233000 |
| Alpha v1.0.10 | 1279814234000 |
| Alpha v1.0.11 | 1279892199000 |
| Alpha v1.0.12 | 1280156937000 |
| Alpha v1.0.13 | 1280331003000 |
| Alpha v1.0.13_01 | 1280396296000 (orig.) 1280411092000 (reup.) |
| Alpha v1.0.14 | 1280502204000 (orig.) 1280505555000 (reup.) |
| Alpha v1.0.15 | 1280861245000 |
| Alpha v1.0.16 | Unknown |
| Alpha v1.0.16_01 | 1281632406000 |
| Alpha v1.0.16_02 | 1281688214000 |
| Alpha v1.0.17 | Unknown |
| Alpha v1.0.17_01 | Unknown |
| Alpha v1.0.17_02 | 1282307028000 |
| Alpha v1.0.17_03 | 1282576951000 |
| Alpha v1.0.17_04 | 1282595057000 |
| Alpha v1.1.0 | Unknown (orig.) 1284140847000 (reup. 1) 1284402811000 (reup. 2) |
| Alpha v1.1.1 | 1284827396000 |
| Alpha v1.1.2 | Unknown 1284842028000 |
| Alpha v1.1.2_01 | 1285241960000 |
| Alpha v1.2.0 | 1288468289000 (orig.) 1288468646000 (reup.) |
| Alpha v1.2.0_01 | 1288471650000 |
| Alpha v1.2.0_02 | 1288533147000 |
| Alpha v1.2.1 | Unknown |
| Alpha v1.2.1_01 | 1288951302000 |
| Alpha v1.2.2 | Unknown (orig.) 1289406252000 (reup. 1) 1289417910000 (reup. 2) |
| Alpha v1.2.3 | Unknown |
| Alpha v1.2.3_01 | Unknown (orig.) 1290592709000 (reup.) |
| Alpha v1.2.3_02 | 1290701545000 |
| Alpha v1.2.3_04 | 1290776384000 |
| Alpha v1.2.3_05 | 1291140413000 |
| Alpha v1.2.4_01 | 1291142542000 |
| Alpha v1.2.5 | 1291216127000 |
| Alpha v1.2.6 | 1291385898000 1292492918000 |
| Game version | ID |
|---|---|
| Beta 1.0 | 1292866137000 |
| Beta 1.0_01 | 1292869768000 |
| Beta 1.0.2 | 1292920590000 (orig.) 1292920904000 (reup.) |
| Beta 1.1 | 1293021910000 (orig.) Unknown (reup.) |
| Beta 1.1_01 | Unknown |
| Beta 1.1_02 | 1293023696000 |
| Beta 1.2 | 1294935268000 |
| Beta 1.2_01 | 1295011600000 1295011662000 1295383684000 |
| Beta 1.2_02 | 1295618277000 |
| Beta 1.3 | Unknown (orig.) Unknown (reup. 1) 1298397074000 (reup. 2) |
| Beta 1.3_01 | 1298470263000 |
| Beta 1.4 | Unknown (orig.) 1301589316000 (reup.) |
| Beta 1.4_01 | 1301991999000 |
| Beta 1.5 | 1303219754000 (orig.) 1303220253000 (reup.) |
| Beta 1.5_01 | 1303302694000 |
| Beta 1.6 | 1306400389000 |
| Beta 1.6.1 | Unknown |
| Beta 1.6.2 | 1306402345000 |
| Beta 1.6.3 | Unknown |
| Beta 1.6.4 | 1306418981000 |
| Beta 1.6.5 | 1306595612000 |
| Beta 1.6.6 | 1306845669000 |
| Beta 1.7 | 1309441055000 |
| Beta 1.7_01 | 1309444501000 |
| Beta 1.7.2 | 1309520900000 |
| Beta 1.7.3 | 1310111031000 |
| Beta 1.8 | 1315993659000 |
| Beta 1.8.1 | 1316075312000 |
| Game version | ID |
|---|---|
| 1.0.0 | 1321653290000 |
| 1.1 | 1326382442000 |
| 1.2.1 | 1330609273000 |
| 1.2.2 | 1330611617000 |
| 1.2.3 | 1330677677000 |
| 1.2.4 | 1332432053000 |
| 1.2.5 | 1333544508000 |
| 1.3.1 | 1343825972000 |
| 1.3.2 | 1345124077000 |
| 1.4.2 | 1351157607000 |
| 1.4.4 | 1352902011000 |
| 1.4.5 | 1353414733000 |
| 1.4.6 | 1355999243000 |
| 1.4.7 | 1357737036000 |
| 1.5 | 1363184671000 |
| 1.5.1 | 1363862534000 |
| 1.5.2 | 1367502965000 1374223516000 |
| Java Edition Classic | |||||||
|---|---|---|---|---|---|---|---|
| ? | Added al_version in order to run Minecraft as an applet. | ||||||
| It takes the form of an increasing positive floating point number. | |||||||
| Java Edition Indev | |||||||
| ? | Reset al_version back to 1.0. | ||||||
| Java Edition Infdev | |||||||
| 20100629 | Removed al_version proper, as the game now uses the launcher and not AppletLoader. The caching ID now takes the form of an integer timestamp instead of floating point number. | ||||||
| Java Edition | |||||||
| 1.5.2 | This is the last version to have a cache ID. | ||||||