java.lang.Object
- org.apache.lucene.util.Version

```
public final class Version
extends Object
```
Use by certain classes to match version compatibility across releases of Lucene.
WARNING: When changing the version parameter that you supply to components in Lucene, do not simply change the version at search-time, but instead also adjust your indexing code to match, and re-index.

Field Summary

Fields
Modifier and Type	Field	Description
`int`	`bugfix`	Bugfix number, incremented on release branches
`static Version`	`LATEST`	WARNING: if you use this setting, and then upgrade to a newer release of Lucene, sizable changes may happen.
`static Version`	`LUCENE_6_0_0`	Deprecated. (7.0.0) Use latest
`static Version`	`LUCENE_6_0_1`	Deprecated. Use latest
`static Version`	`LUCENE_6_1_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_2_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_2_1`	Deprecated. Use latest
`static Version`	`LUCENE_6_3_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_4_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_4_1`	Deprecated. Use latest
`static Version`	`LUCENE_6_4_2`	Deprecated. Use latest
`static Version`	`LUCENE_6_5_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_5_1`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_0`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_1`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_2`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_3`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_4`	Deprecated. Use latest
`static Version`	`LUCENE_6_6_5`	Deprecated. Use latest
`static Version`	`LUCENE_7_0_0`	Deprecated. (7.1.0) Use latest
`static Version`	`LUCENE_7_0_1`	Deprecated. Use latest
`static Version`	`LUCENE_7_1_0`	Deprecated. (7.2.0) Use latest
`static Version`	`LUCENE_7_2_0`	Deprecated. (7.3.0) Use latest
`static Version`	`LUCENE_7_2_1`	Deprecated. (7.3.0) Use latest
`static Version`	`LUCENE_7_3_0`	Deprecated. (7.4.0) Use latest
`static Version`	`LUCENE_7_3_1`	Deprecated. Use latest
`static Version`	`LUCENE_7_4_0`	Deprecated. (7.5.0) Use latest
`static Version`	`LUCENE_7_5_0`	Deprecated. (7.6.0) Use latest
`static Version`	`LUCENE_7_6_0`	Deprecated. (7.7.0) Use latest
`static Version`	`LUCENE_7_7_0`	Match settings and bugs in Lucene's 7.7.0 release.
`static Version`	`LUCENE_CURRENT`	Deprecated. Use `LATEST`
`int`	`major`	Major version, the difference between stable and trunk
`int`	`minor`	Minor version, incremented within the stable branch
`int`	`prerelease`	Prerelease version, currently 0 (alpha), 1 (beta), or 2 (final)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`equals(Object o)`
`static Version`	`fromBits(int major, int minor, int bugfix)`	Returns a new version based on raw numbers
`int`	`hashCode()`
`boolean`	`onOrAfter(Version other)`	Returns true if this version is the same or after the version from the argument.
`static Version`	`parse(String version)`	Parse a version number of the form `"major.minor.bugfix.prerelease"`.
`static Version`	`parseLeniently(String version)`	Parse the given version number as a constant or dot based version.
`String`	`toString()`

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

- Field Detail
  - LUCENE_6_0_0
```
@Deprecated
public static final Version LUCENE_6_0_0
```
    Deprecated.
    (7.0.0) Use latest
    
    Match settings and bugs in Lucene's 6.0 release.
  - LUCENE_6_0_1
```
@Deprecated
public static final Version LUCENE_6_0_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.0.1 release.
  - LUCENE_6_1_0
```
@Deprecated
public static final Version LUCENE_6_1_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.1.0 release.
  - LUCENE_6_2_0
```
@Deprecated
public static final Version LUCENE_6_2_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.2.0 release.
  - LUCENE_6_2_1
```
@Deprecated
public static final Version LUCENE_6_2_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.2.1 release.
  - LUCENE_6_3_0
```
@Deprecated
public static final Version LUCENE_6_3_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.3.0 release.
  - LUCENE_6_4_0
```
@Deprecated
public static final Version LUCENE_6_4_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.4.0 release.
  - LUCENE_6_4_1
```
@Deprecated
public static final Version LUCENE_6_4_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.4.1 release.
  - LUCENE_6_4_2
```
@Deprecated
public static final Version LUCENE_6_4_2
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.4.2 release.
  - LUCENE_6_5_0
```
@Deprecated
public static final Version LUCENE_6_5_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.5.0 release.
  - LUCENE_6_5_1
```
@Deprecated
public static final Version LUCENE_6_5_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.5.1 release.
  - LUCENE_6_6_0
```
@Deprecated
public static final Version LUCENE_6_6_0
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.0 release.
  - LUCENE_6_6_1
```
@Deprecated
public static final Version LUCENE_6_6_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.1 release.
  - LUCENE_6_6_2
```
@Deprecated
public static final Version LUCENE_6_6_2
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.2 release.
  - LUCENE_6_6_3
```
@Deprecated
public static final Version LUCENE_6_6_3
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.3 release.
  - LUCENE_6_6_4
```
@Deprecated
public static final Version LUCENE_6_6_4
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.4 release.
  - LUCENE_6_6_5
```
@Deprecated
public static final Version LUCENE_6_6_5
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 6.6.5 release.
  - LUCENE_7_0_0
```
@Deprecated
public static final Version LUCENE_7_0_0
```
    Deprecated.
    (7.1.0) Use latest
    
    Match settings and bugs in Lucene's 7.0.0 release.
  - LUCENE_7_0_1
```
@Deprecated
public static final Version LUCENE_7_0_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 7.0.1 release.
  - LUCENE_7_1_0
```
@Deprecated
public static final Version LUCENE_7_1_0
```
    Deprecated.
    (7.2.0) Use latest
    
    Match settings and bugs in Lucene's 7.1.0 release.
  - LUCENE_7_2_0
```
@Deprecated
public static final Version LUCENE_7_2_0
```
    Deprecated.
    (7.3.0) Use latest
    
    Match settings and bugs in Lucene's 7.2.0 release.
  - LUCENE_7_2_1
```
@Deprecated
public static final Version LUCENE_7_2_1
```
    Deprecated.
    (7.3.0) Use latest
    
    Match settings and bugs in Lucene's 7.2.1 release.
  - LUCENE_7_3_0
```
@Deprecated
public static final Version LUCENE_7_3_0
```
    Deprecated.
    (7.4.0) Use latest
    
    Match settings and bugs in Lucene's 7.3.0 release.
  - LUCENE_7_3_1
```
@Deprecated
public static final Version LUCENE_7_3_1
```
    Deprecated.
    Use latest
    
    Match settings and bugs in Lucene's 7.3.1 release.
  - LUCENE_7_4_0
```
@Deprecated
public static final Version LUCENE_7_4_0
```
    Deprecated.
    (7.5.0) Use latest
    
    Match settings and bugs in Lucene's 7.4.0 release.
  - LUCENE_7_5_0
```
@Deprecated
public static final Version LUCENE_7_5_0
```
    Deprecated.
    (7.6.0) Use latest
    
    Match settings and bugs in Lucene's 7.5.0 release.
  - LUCENE_7_6_0
```
@Deprecated
public static final Version LUCENE_7_6_0
```
    Deprecated.
    (7.7.0) Use latest
    
    Match settings and bugs in Lucene's 7.6.0 release.
  - LUCENE_7_7_0
```
public static final Version LUCENE_7_7_0
```
    Match settings and bugs in Lucene's 7.7.0 release.
    Use this to get the latest & greatest settings, bug fixes, etc, for Lucene.
  - LATEST
```
public static final Version LATEST
```
    WARNING: if you use this setting, and then upgrade to a newer release of Lucene, sizable changes may happen. If backwards compatibility is important then you should instead explicitly specify an actual version.
    If you use this constant then you may need to re-index all of your documents when upgrading Lucene, as the way text is indexed may have changed. Additionally, you may need to re-test your entire application to ensure it behaves as expected, as some defaults may have changed and may break functionality in your application.
  - LUCENE_CURRENT
```
@Deprecated
public static final Version LUCENE_CURRENT
```
    Deprecated.
    Use LATEST
    
    Constant for backwards compatibility.
  - major
```
public final int major
```
    Major version, the difference between stable and trunk
  - minor
```
public final int minor
```
    Minor version, incremented within the stable branch
  - bugfix
```
public final int bugfix
```
    Bugfix number, incremented on release branches
  - prerelease
```
public final int prerelease
```
    Prerelease version, currently 0 (alpha), 1 (beta), or 2 (final)
- Method Detail
  - parse
```
public static Version parse(String version)
                     throws ParseException
```
    Parse a version number of the form "major.minor.bugfix.prerelease". Part ".bugfix" and part ".prerelease" are optional. Note that this is forwards compatible: the parsed version does not have to exist as a constant.
    
    Throws:
    
    ParseException
    
    NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
  - parseLeniently
```
public static Version parseLeniently(String version)
                              throws ParseException
```
    Parse the given version number as a constant or dot based version.
    This method allows to use "LUCENE_X_Y" constant names, or version numbers in the format "x.y.z".
    
    Throws:
    
    ParseException
    
    NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
  - fromBits
```
public static Version fromBits(int major,
                               int minor,
                               int bugfix)
```
    Returns a new version based on raw numbers
    
    NOTE: This API is for internal purposes only and might change in incompatible ways in the next release.
  - onOrAfter
```
public boolean onOrAfter(Version other)
```
    Returns true if this version is the same or after the version from the argument.
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object

Class Version

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

LUCENE_6_0_0

LUCENE_6_0_1

LUCENE_6_1_0

LUCENE_6_2_0

LUCENE_6_2_1

LUCENE_6_3_0

LUCENE_6_4_0

LUCENE_6_4_1

LUCENE_6_4_2

LUCENE_6_5_0

LUCENE_6_5_1

LUCENE_6_6_0

LUCENE_6_6_1

LUCENE_6_6_2

LUCENE_6_6_3

LUCENE_6_6_4

LUCENE_6_6_5

LUCENE_7_0_0

LUCENE_7_0_1

LUCENE_7_1_0

LUCENE_7_2_0

LUCENE_7_2_1

LUCENE_7_3_0

LUCENE_7_3_1

LUCENE_7_4_0

LUCENE_7_5_0

LUCENE_7_6_0

LUCENE_7_7_0

LATEST

LUCENE_CURRENT

major

minor

bugfix

prerelease

Method Detail

parse

parseLeniently

fromBits

onOrAfter

toString

equals

hashCode