| Download archived versions, install and upgrade via USB drive | 
|---|
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-253650-Win32.exe | 336.105 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.17.11 | 2025-09-05 |  | Boot | 10.87.2 | 2025-05-23 |  | Fiber Optics | 25.4.16 | 2025-09-05 |  | Instrument Setup | 25.4.16 | 2025-08-20 |  | Linux Kernel | 25.14.1 | 2025-09-05 |  | Microscope | 25.4.16 | 2025-08-21 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-253010-Win32.exe | 336.101 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.17.3 | 2025-07-21 |  | Boot | 10.87.2 | 2025-05-23 |  | Fiber Optics | 25.4.9 | 2025-07-18 |  | Instrument Setup | 25.4.9 | 2025-06-05 |  | Linux Kernel | 25.14.1 | 2025-07-21 |  | Microscope | 25.4.9 | 2025-01-13 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-252720-Win32.exe | 336.026 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.17.2 | 2025-07-01 |  | Boot | 10.87.2 | 2025-05-23 |  | Fiber Optics | 25.4.7 | 2025-07-01 |  | Instrument Setup | 25.4.7 | 2025-06-05 |  | Linux Kernel | 25.14.1 | 2025-07-01 |  | Microscope | 25.4.7 | 2025-01-13 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-245130-Win32.exe | 338.697 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.13.21 | 2024-12-18 |  | Boot | 10.86.3 | 2024-11-18 |  | Fiber Optics | 24.4.21 | 2024-12-18 |  | Instrument Setup | 24.4.21 | 2024-11-26 |  | Linux Kernel | 25.12.2 | 2024-07-10 |  | Microscope | 24.4.21 | 2024-08-20 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-243910-Win32.exe | 338.147 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.13.14 | 2024-09-23 |  | Boot | 10.86.1 | 2024-07-10 |  | Fiber Optics | 24.4.14 | 2024-09-23 |  | Instrument Setup | 24.4.14 | 2024-09-19 |  | Linux Kernel | 25.12.2 | 2024-07-10 |  | Microscope | 24.4.14 | 2024-06-11 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-243111-Win32.exe | 338.088 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.13.3 | 2024-07-29 |  | Boot | 10.86.1 | 2024-07-10 |  | Fiber Optics | 24.4.8 | 2024-07-29 |  | Instrument Setup | 24.4.8 | 2024-07-02 |  | Linux Kernel | 25.12.2 | 2024-07-10 |  | Microscope | 24.4.8 | 2024-07-22 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-242310-Win32.exe | 337.010 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.9.2 | 2024-06-03 |  | Boot | 10.85.0 | 2023-12-26 |  | Fiber Optics | 24.2.7 | 2024-06-03 |  | Instrument Setup | 24.2.7 | 2024-05-06 |  | Linux Kernel | 25.10.0 | 2024-05-06 |  | Microscope | 24.2.7 | 2024-05-13 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-241140-Win32.exe | 336.961 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.7.1 | 2024-03-12 |  | Boot | 10.85.0 | 2023-12-26 |  | Fiber Optics | V24.00 | 2024-03-14 |  | Instrument Setup | V24.00 | 2024-03-13 |  | Linux Kernel | 25.9.0 | 2024-02-13 |  | Microscope | V24.00 | 2024-03-13 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-234930-Win32.exe | 334.966 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.4.7 | 2023-12-06 |  | Fiber Optics | V23.68 | 2023-12-05 |  | Instrument Setup | V23.68 | 2023-12-05 |  | Microscope | V23.68 | 2023-12-05 |  | Boot | 10.84.0 | 2023-08-11 |  | Linux Kernel | 25.6.2 | 2023-11-10 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-234241-Win32.exe | 334.960 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.4.4 | 2023-10-19 |  | Fiber Optics | V23.62 | 2023-10-19 |  | Instrument Setup | V23.62 | 2023-10-19 |  | Microscope | V23.62 | 2023-10-19 |  | Boot | 10.84.0 | 2023-08-11 |  | Linux Kernel | 25.6.2 | 2023-09-22 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-233110-Win32.exe | 320.530 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.23 | 2023-07-31 |  | Fiber Optics | V23.40 | 2023-07-21 |  | Instrument Setup | V23.40 | 2023-07-21 |  | Microscope | V23.40 | 2023-07-21 |  | Boot | 10.81.4 | 2023-03-31 |  | Linux Kernel | 25.2.2 | 2023-03-03 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-232320-Win32.exe | 320.432 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.17 | 2023-06-06 |  | Fiber Optics | V23.34 | 2023-06-05 |  | Instrument Setup | V23.34 | 2023-06-05 |  | Microscope | V23.34 | 2023-06-05 |  | Boot | 10.81.4 | 2023-03-31 |  | Linux Kernel | 25.2.2 | 2023-03-03 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-231450-Win32.exe | 320.297 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.12 | 2023-04-07 |  | Fiber Optics | V23.22 | 2023-04-07 |  | Instrument Setup | V23.22 | 2023-04-07 |  | Microscope | V23.22 | 2023-04-07 |  | Boot | 10.81.4 | 2023-03-31 |  | Linux Kernel | 25.2.2 | 2023-03-03 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-230940-Win32.exe | 319.762 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.4 | 2023-03-02 |  | Fiber Optics | V23.08 | 2023-03-02 |  | Instrument Setup | V23.08 | 2023-03-02 |  | Microscope | V23.08 | 2023-03-02 |  | Boot | 10.81.3 | 2023-03-02 |  | Linux Kernel | 25.2.2 | 2022-11-04 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-230350-Win32.exe | 319.764 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.2 | 2023-01-20 |  | Fiber Optics | V23.04 | 2023-01-20 |  | Instrument Setup | V23.04 | 2023-01-20 |  | Microscope | V23.04 | 2023-01-20 |  | Boot | 10.81.2 | 2022-10-28 |  | Linux Kernel | 25.2.2 | 2022-11-04 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-225040-Win32.exe | 319.770 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.1.0 | 2022-12-15 |  | Fiber Optics | V23.00 | 2022-12-15 |  | Instrument Setup | V23.00 | 2022-12-15 |  | Microscope | V23.00 | 2022-12-15 |  | Boot | 10.81.2 | 2022-10-28 |  | Linux Kernel | 25.2.2 | 2022-11-04 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-224140-Win32.exe | 319.355 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | File System | 23.0.13 | 2022-10-13 |  | Fiber Optics | V22.64 | 2022-10-04 |  | Instrument Setup | V22.64 | 2022-10-04 |  | Microscope | V22.64 | 2022-10-04 |  | Boot | 10.81.1 | 2022-07-21 |  | Linux Kernel | 25.1.0 | 2022-05-31 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-220740-Win32.exe | 299.777 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.10.2 | 2022-02-17 |  | Boot | 10.81.0 | 2022-01-28 |  | Linux Kernel | 21.8.2 | 2021-12-20 |  | Fiber Optics | V22.02 | 2022-02-17 |  | Instrument Setup | V22.02 | 2022-02-17 |  | Microscope | V22.02 | 2022-02-17 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-214750-Win32.exe | 296.446 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.9.11 | 2021-11-26 |  | Boot | V10.80 | 2021-10-08 |  | Linux Kernel | 21.8.2 | 2021-09-27 |  | Fiber Optics | V21.62 | 2021-11-26 |  | Instrument Setup | V21.62 | 2021-11-26 |  | Microscope | V21.62 | 2021-11-26 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-214050-Win32.exe | 295.941 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.9.2 | 2021-10-08 |  | Boot | V10.80 | 2021-10-08 |  | Linux Kernel | 21.8.2 | 2021-09-27 |  | Fiber Optics | V21.50 | 2021-10-08 |  | Instrument Setup | V21.50 | 2021-10-08 |  | Microscope | V21.50 | 2021-10-08 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-212430-Win32.exe | 291.324 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.7.14 | 2021-06-16 |  | Boot | V10.76 | 2021-03-12 |  | Linux Kernel | 21.7.3 | 2021-04-20 |  | Fiber Optics | V21.14 | 2021-06-16 |  | Instrument Setup | V21.14 | 2021-06-16 |  | Microscope | V21.14 | 2021-06-16 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-210650-Win32.exe | 292.879 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.6.3 | 2021-02-12 |  | Boot | V10.60 | 2021-01-13 |  | Linux Kernel | V21.4.1 | 2020-12-07 |  | Fiber Optics | V20.20 | 2021-02-12 |  | Instrument Setup | V20.20 | 2021-02-12 |  | Microscope | V20.20 | 2021-02-12 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-204750-Win32.exe | 291.672 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.2.12 | 2020-11-20 |  | Boot | V10.60 | 2020-11-03 |  | Linux Kernel | V21.2.6 | 2020-11-18 |  | Fiber Optics | V20.02 | 2020-11-20 |  | Instrument Setup | V20.02 | 2020-11-20 |  | Microscope | V20.02 | 2020-11-20 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-203520-Win32.exe | 300.161 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.1.3 | 2020-08-25 |  | Boot | V10.56 | 2020-08-03 |  | Linux Kernel | V10.76 | 2020-07-23 |  | Fiber Optics | V19.52 | 2020-08-25 |  | Microscope | V19.50 | 2020-08-05 |  | Instrument Setup | V19.50 | 2020-08-05 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-202811-Win32.exe | 298.651 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.0.2 | 2020-07-03 |  | Boot | V10.56 | 2020-05-28 |  | Linux Kernel | V10.74 | 2020-05-20 |  | Fiber Optics | V19.00 | 2020-05-28 |  | Instrument Setup | V19.00 | 2020-05-28 |  | Microscope | V19.00 | 2020-05-28 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-202240-Win32.exe | 320.244 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | File System | 21.0.1 | 2020-05-28 |  | Boot | V10.56 | 2020-05-28 |  | Linux Kernel | V10.74 | 2020-05-20 |  | Fiber Optics | V19.00 | 2020-05-28 |  | Instrument Setup | V19.00 | 2020-05-28 |  | Microscope | V19.00 | 2020-05-28 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-201140-Win32.exe | 235.615 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | Boot | V10.54 | 2020-01-24 |  | Linux Kernel | V10.60 | 2019-09-30 |  | File System | V11.16 | 2020-03-12 |  | Fiber Optics | V18.74 | 2020-03-12 |  | Instrument Setup | V18.74 | 2020-03-12 |  | Microscope | V18.74 | 2020-03-12 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-194340-Win32.exe | 235.569 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | Boot | V10.52 | 2019-10-24 |  | Linux Kernel | V10.60 | 2019-09-30 |  | File System | V10.96 | 2019-10-24 |  | Fiber Optics | V18.50 | 2019-10-24 |  | Instrument Setup | V18.50 | 2019-10-24 |  | Microscope | V18.50 | 2019-10-24 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-192842-Win32.exe | 233.076 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | Boot | V10.38 | 2019-04-14 |  | Linux Kernel | V10.54 | 2019-03-18 |  | File System | V10.80 | 2019-05-12 |  | Fiber Optics | V18.08 | 2019-07-11 |  | Instrument Setup | V18.04 | 2019-05-06 |  | Microscope | V18.04 | 2019-05-06 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-191910-Win32.exe | 233.107 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | Boot | V10.38 | 2019-04-12 |  | Linux Kernel | V10.54 | 2019-03-18 |  | File System | V10.80 | 2019-05-06 |  | Fiber Optics | V18.04 | 2019-05-06 |  | Instrument Setup | V18.04 | 2019-05-06 |  | Microscope | V18.04 | 2019-05-06 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-184310-Win32.exe | 220.704 MB |  | Release Notes | 
| | Release Info | Version | Date | 
|---|
 | Boot | V10.24 | 2018-10-17 |  | Linux Kernel | V10.44 | 2018-09-03 |  | File System | V10.54 | 2018-10-22 |  | Fiber Optics | V17.32 | 2018-10-22 |  | Instrument Setup | V17.32 | 2018-10-22 |  | Microscope | V17.32 | 2018-10-22 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-182241-Win32.exe | 393.498 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | Fiber Optics | V16.88 | 2018-05-31 |  | Microscope | V16.88 | 2018-05-31 |  | Instrument Setup | V16.88 | 2018-05-31 |  | Linux Kernel | V10.30 | 2018-05-18 |  | File System | V10.20 | 2018-05-31 |  | Boot | V10.10 | 2018-05-22 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-180631-Win32.exe | 416.724 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | Fiber Optics | V16.84 | 2017-12-19 |  | Microscope | V16.84 | 2017-12-19 |  | Instrument Setup | V16.84 | 2017-12-19 |  | Linux Kernel | V10.06 | 2018-02-07 |  | File System | V10.04 | 2017-12-19 |  | Boot | V10.00 | 2017-12-19 | 
 | 
            
              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-175130-Win32.exe | 416.715 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | Fiber Optics | V16.84 | 2017-12-19 |  | Microscope | V16.84 | 2017-12-19 |  | Instrument Setup | V16.84 | 2017-12-19 |  | Linux Kernel | V10.04 | 2017-12-20 |  | File System | V10.04 | 2017-12-19 |  | Boot | V10.00 | 2017-12-19 | 
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              | Server Location | File Name | File Size | Release Date | Release Notes | 
|  | base4kv2-174852-Win32.exe | 397.612 MB |  |  | 
| | Release Info | Version | Date | 
|---|
 | Fiber Optics | V16.82 | 2017-12-01 |  | Microscope | V16.82 | 2017-12-01 |  | Instrument Setup | V16.82 | 2017-12-01 |  | File System | V10.02 | 2017-12-01 |  | Linux Kernel | V10.00 | 2017-11-28 |  | Boot | V10.00 | 2017-11-28 | 
 |