Supported Cisco MDS NX-OS Software Nondisruptive Upgrade Paths

This section provides information on nondisruptive upgrade paths that are supported for Cisco MDS NX-OS software Release 9.x. It includes the following topics:

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(4)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.4(3b) Upgrade directly to MDS NX-OS Release 9.4(4)
9.4(3a) Upgrade directly to MDS NX-OS Release 9.4(4)
9.4(3) Upgrade directly to MDS NX-OS Release 9.4(4)
9.4(2a) Upgrade directly to MDS NX-OS Release 9.4(4)
9.4(2)

  1. Upgrade to MDS NX-OS Release 9.4(2a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
9.4(1a) Upgrade directly to MDS NX-OS Release 9.4(4)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(4)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(4)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(4)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(4)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(3b)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.4(3a) Upgrade directly to MDS NX-OS Release 9.4(3b)
9.4(3) Upgrade directly to MDS NX-OS Release 9.4(3b)
9.4(2a) Upgrade directly to MDS NX-OS Release 9.4(3b)
9.4(2)

  1. Upgrade to MDS NX-OS Release 9.4(2a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
9.4(1a) Upgrade directly to MDS NX-OS Release 9.4(3b)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3b)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(3b)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3b)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(3a)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.4(3) Upgrade directly to MDS NX-OS Release 9.4(3a)
9.4(2a) Upgrade directly to MDS NX-OS Release 9.4(3a)
9.4(2)

  1. Upgrade to MDS NX-OS Release 9.4(2a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
9.4(1a) Upgrade directly to MDS NX-OS Release 9.4(3a)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3a)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3a)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(3a)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3a)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(3)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.4(2a) Upgrade directly to MDS NX-OS Release 9.4(3)
9.4(2)

  1. Upgrade to MDS NX-OS Release 9.4(2a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
9.4(1a) Upgrade directly to MDS NX-OS Release 9.4(3)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f).

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(3)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(2a)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps

9.4(2)

Upgrade directly to MDS NX-OS Release 9.4(2a)

9.4(1a)

Upgrade directly to MDS NX-OS Release 9.4(2a)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2a)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2a)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2a)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2a)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2a)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f).

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(2a)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(2a)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(2a)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(2)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps

9.4(1a)

 Upgrade directly to MDS NX-OS Release 9.4(2)
9.4(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2)
9.3(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2)
9.2(x)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2)
8.5(1)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(2)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f).

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(2)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(2)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(2)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(1a)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.4(1) Upgrade directly to MDS NX-OS Release 9.4(1a)
9.3(x) Upgrade directly to MDS NX-OS Release 9.4(1a)
9.2(x) Upgrade directly to MDS NX-OS Release 9.4(1a)
8.5(1) Upgrade directly to MDS NX-OS Release 9.4(1a)
8.4(2c), 8.4(2d), 8.4(2e), 8.4(2f) Upgrade directly to MDS NX-OS Release 9.4(1a)
Any 8.x prior to 8.4(2c)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d) or 8.4(2e) or 8.4(2f)

  2. Upgrade to MDS NX-OS Release 9.4(1a)
7.3(1)DY

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)
6.2(29), 6.2(31), 6.2(33)

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.4(2d)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(1)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.(x) Upgrade directly to MDS NX-OS Release 9.4(1)
8.5(1) Upgrade directly to MDS NX-OS Release 9.4(1)
8.4(2f), 8.4(2e), 8.4(2d), and 8.4(2c) Upgrade directly to MDS NX-OS Release 9.4(1)
8.4(2b) and prior releases

  1. Upgrade to MDS NX-OS Release 8.4(2c), 8.4(2d), 8.4(2e) and 8.4(2f)

  2. Upgrade to MDS NX-OS Release 9.4(1)
All 7.3(x) releases

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.4(1)
6.2(29) and above releases

  1. Upgrade to MDS NX-OS Release 8.4(2c) or 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.4(1)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.3(2a)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.3(x) Upgrade directly to MDS NX-OS Release 9.3(2a)
9.2(x) Upgrade directly to MDS NX-OS Release 9.3(2a)
8.1(x) and above releases Upgrade directly to MDS NX-OS Release 9.3(2a)
All 7.3(x) releases

  1. Upgrade directly to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.3(2a)
6.2(29) and above releases

  1. Upgrade directly to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.3(2a)
6.2(13a) until 6.2(27)

  1. Upgrade directly to MDS NX-OS Release 6.2(29)

  2. Upgrade directly to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.3(2a)
All 6.2(x) releases prior to 6.2(13a)

  1. Upgrade directly to MDS NX-OS Release 6.2(13a)

  2. Upgrade directly to MDS NX-OS Release 6.2(29)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.3(2a)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.3(2)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.3(1) Upgrade directly to MDS NX-OS Release 9.3(2)
9.2(x) Upgrade directly to MDS NX-OS Release 9.3(2)
8.1(x) and above releases Upgrade directly to MDS NX-OS Release 9.3(2)
All 7.3(x) releases

  1. Upgrade directly to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.3(2)
6.2(29) and above releases

  1. Upgrade directly to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.3(2)
6.2(13a) until 6.2(27)

  1. Upgrade directly to MDS NX-OS Release 6.2(29)

  2. Upgrade directly to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.3(2)
All 6.2(x) releases prior to 6.2(13a)

  1. Upgrade directly to MDS NX-OS Release 6.2(13a)

  2. Upgrade directly to MDS NX-OS Release 6.2(29)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.3(2)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.3(1)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.2(x) Upgrade directly to MDS NX-OS Release 9.3(1)
8.1(x) and above releases Upgrade directly to MDS NX-OS Release 9.3(1)
All 7.3(x) releases

  1. Upgrade directly to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.3(1)
6.2(29) and above releases

  1. Upgrade directly to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.3(1)
6.2(13a) until 6.2(27)

  1. Upgrade directly to MDS NX-OS Release 6.2(29)

  2. Upgrade directly to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.3(1)
All 6.2(x) releases prior to 6.2(13a)

  1. Upgrade directly to MDS NX-OS Release 6.2(13a)

  2. Upgrade directly to MDS NX-OS Release 6.2(29)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.3(1)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.2(2)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
9.2(1) Upgrade directly to MDS NX-OS Release 9.2(2)
8.1(x) and above releases Upgrade directly to MDS NX-OS Release 9.2(2)
All 7.3(x) releases

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.2(2)
6.2(29) and above releases

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.2(2)
6.2(13a) until 6.2(27)

  1. Upgrade to MDS NX-OS Release 6.2(29)

  2. Upgrade to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.2(2)
All 6.2(x) releases prior to 6.2(13a)

  1. Upgrade directly to MDS NX-OS Release 6.2(13a)

  2. Upgrade directly to MDS NX-OS Release 6.2(29)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.2(2)

Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.2(1)

Current Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
8.1(x) and above releases Upgrade to MDS NX-OS Release 9.2(1)
All 7.3(x) releases

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 9.2(1)
6.2(29) and above releases

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.2(1)
6.2(13a) until 6.2(27)

  1. Upgrade to MDS NX-OS Release 6.2(29)

  2. Upgrade to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.2(1)
All 6.2(x) releases prior to 6.2(13a)

  1. Upgrade to MDS NX-OS Release 6.2(13a)

  2. Upgrade to MDS NX-OS Release 6.2(29)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.2(1)

FICON Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(3b)

Current FICON-qualified Release Nondisruptive Upgrade Paths
9.4(1a) Upgrade directly to MDS NX-OS Release 9.4(3b)
8.4(2e)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
8.4(2c)

  1. Upgrade to MDS NX-OS Release 9.4(1a)

  2. Upgrade to MDS NX-OS Release 9.4(3b)
8.4(2b)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3b)
8.4(1a)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3b)
8.1(1b)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)

  3. Upgrade to MDS NX-OS Release 9.4(3b)
8.1(1a)

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)

  4. Upgrade to MDS NX-OS Release 9.4(3b)

FICON Nondisruptive Upgrade Paths to Cisco MDS NX-OS Release 9.4(1a)

Current FICON-qualified Release Nondisruptive Upgrade Path and Ordered Upgrade Steps
8.4(2e) Upgrade directly to MDS NX-OS Release 9.4(1a)
8.4(2c) Upgrade directly to MDS NX-OS Release 9.4(1a)
8.4(2b)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)
8.4(1a)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)
8.1(1b)

  1. Upgrade to MDS NX-OS Release 8.4(2c)

  2. Upgrade to MDS NX-OS Release 9.4(1a)
8.1(1a)

  1. Upgrade to MDS NX-OS Release 8.1(1b)

  2. Upgrade to MDS NX-OS Release 8.4(2c)

  3. Upgrade to MDS NX-OS Release 9.4(1a)
6.2(11e)

  1. Upgrade to MDS NX-OS Release 8.1(1a)

  2. Upgrade to MDS NX-OS Release 8.1(1b)

  3. Upgrade to MDS NX-OS Release 8.4(2c)

  4. Upgrade to MDS NX-OS Release 9.4(1a)