What's new and changed in watsonx Assistant

IBM watsonx Assistant updates can include new features and fixes. Releases are listed in reverse chronological order so that the latest release is at the beginning of the topic.

You can see a list of the new features for the platform and all of the services at What's new in IBM Software Hub.

Installing or upgrading watsonx Assistant

Ready to install or upgrade watsonx Assistant?

To install watsonx Assistant along with the other IBM® Software Hub services, see Installing IBM Software Hub.
To upgrade watsonx Assistant along with the other IBM Software Hub services, see Upgrading IBM Software Hub.
To install or upgrade watsonx Assistant independently, see watsonx Assistant.
Remember: All of the IBM Software Hub components associated with an instance of IBM Software Hub must be installed at the same version.

IBM Software Hub Version 5.4.0

A new version of watsonx Assistant was released in June 2026 with IBM Software Hub 5.4.0.

Operand version: 5.4.0

This release includes the following changes:

Updates

The following updates were introduced in this release:

You can use gpt-oss-120b model, an OpenAI’s open-weight model designed for

Powerful reasoning and various developer use cases
Answer conversational search questions
Rewrite user questions to an understood format for conversational search
Gather information to fill in variables in custom actions

Customer-reported issues fixed in this release

For a list of customer-reported issues that were fixed in this release, see the Fix List for IBM Cloud Pak for Data on the IBM Support website.

Security issues fixed in this release

The following security issues were fixed in this release:

CVE-2026-43870, CVE-2026-43869, CVE-2026-43868, CVE-2026-42264, CVE-2026-42044, CVE-2026-42043, CVE-2026-42042, CVE-2026-42041, CVE-2026-42039, CVE-2026-42038, CVE-2026-42037, CVE-2026-42036, CVE-2026-42035, CVE-2026-42034, CVE-2026-42033, CVE-2026-41607, CVE-2026-41606, CVE-2026-41605, CVE-2026-41604, CVE-2026-41603, CVE-2026-41602, CVE-2026-41242, CVE-2026-40976, CVE-2026-40175, CVE-2026-39883, CVE-2026-35554, CVE-2026-34500, CVE-2026-34487, CVE-2026-34483, CVE-2026-33816, CVE-2026-33750, CVE-2026-33672, CVE-2026-33671, CVE-2026-33558, CVE-2026-33412, CVE-2026-33349, CVE-2026-33236, CVE-2026-33231, CVE-2026-33230, CVE-2026-33228, CVE-2026-33155, CVE-2026-33036, CVE-2026-32597, CVE-2026-32141, CVE-2026-31808, CVE-2026-30922, CVE-2026-29146, CVE-2026-29145, CVE-2026-28421, CVE-2026-28417, CVE-2026-27904, CVE-2026-27903, CVE-2026-27601, CVE-2026-26996, CVE-2026-25854, CVE-2026-25646, CVE-2026-25547, CVE-2026-24880, CVE-2026-24734, CVE-2026-24308, CVE-2026-24281, CVE-2026-24049, CVE-2026-23949, CVE-2026-23868, CVE-2026-23528, CVE-2026-23490, CVE-2026-22801, CVE-2026-22796, CVE-2026-22795, CVE-2026-22745, CVE-2026-22695, CVE-2026-21710, CVE-2026-8021, CVE-2026-8019, CVE-2026-8018, CVE-2026-8016, CVE-2026-8015, CVE-2026-8014, CVE-2026-8013, CVE-2026-8012, CVE-2026-8011, CVE-2026-8010, CVE-2026-8009, CVE-2026-8008, CVE-2026-8007, CVE-2026-8006, CVE-2026-8005, CVE-2026-8004, CVE-2026-8003, CVE-2026-8002, CVE-2026-8001, CVE-2026-8000, CVE-2026-7999, CVE-2026-7998, CVE-2026-7996, CVE-2026-7995, CVE-2026-7992, CVE-2026-7991, CVE-2026-7989, CVE-2026-7988, CVE-2026-7987, CVE-2026-7986, CVE-2026-7985, CVE-2026-7984, CVE-2026-7983, CVE-2026-7982, CVE-2026-7981, CVE-2026-7980, CVE-2026-7979, CVE-2026-7977, CVE-2026-7976, CVE-2026-7975, CVE-2026-7974, CVE-2026-7972, CVE-2026-7971, CVE-2026-7970, CVE-2026-7969, CVE-2026-7967, CVE-2026-7964, CVE-2026-7963, CVE-2026-7962, CVE-2026-7961, CVE-2026-7960, CVE-2026-7958, CVE-2026-7956, CVE-2026-7955, CVE-2026-7953, CVE-2026-7952, CVE-2026-7951, CVE-2026-7950, CVE-2026-7947, CVE-2026-7946, CVE-2026-7943, CVE-2026-7942, CVE-2026-7940, CVE-2026-7939, CVE-2026-7938, CVE-2026-7936, CVE-2026-7935, CVE-2026-7934, CVE-2026-7933, CVE-2026-7932, CVE-2026-7930, CVE-2026-7929, CVE-2026-7927, CVE-2026-7926, CVE-2026-7924, CVE-2026-7923, CVE-2026-7922, CVE-2026-7921, CVE-2026-7920, CVE-2026-7919, CVE-2026-7918, CVE-2026-7916, CVE-2026-7910, CVE-2026-7908, CVE-2026-7907, CVE-2026-7906, CVE-2026-7904, CVE-2026-7902, CVE-2026-7900, CVE-2026-7899, CVE-2026-7898, CVE-2026-7896, CVE-2026-7363, CVE-2026-7361, CVE-2026-7359, CVE-2026-7358, CVE-2026-7357, CVE-2026-7356, CVE-2026-7355, CVE-2026-7354, CVE-2026-7353, CVE-2026-7352, CVE-2026-7350, CVE-2026-7349, CVE-2026-7348, CVE-2026-7347, CVE-2026-7346, CVE-2026-7345, CVE-2026-7344, CVE-2026-7343, CVE-2026-7342, CVE-2026-7341, CVE-2026-7340, CVE-2026-7339, CVE-2026-7338, CVE-2026-7337, CVE-2026-7336, CVE-2026-7335, CVE-2026-7334, CVE-2026-7333, CVE-2026-6364, CVE-2026-6363, CVE-2026-6362, CVE-2026-6361, CVE-2026-6360, CVE-2026-6359, CVE-2026-6358, CVE-2026-6319, CVE-2026-6318, CVE-2026-6317, CVE-2026-6316, CVE-2026-6315, CVE-2026-6314, CVE-2026-6310, CVE-2026-6309, CVE-2026-6308, CVE-2026-6307, CVE-2026-6306, CVE-2026-6305, CVE-2026-6304, CVE-2026-6303, CVE-2026-6302, CVE-2026-6301, CVE-2026-6300, CVE-2026-6299, CVE-2026-6298, CVE-2026-6297, CVE-2026-6296, CVE-2026-5919, CVE-2026-5918, CVE-2026-5915, CVE-2026-5914, CVE-2026-5913, CVE-2026-5912, CVE-2026-5911, CVE-2026-5910, CVE-2026-5909, CVE-2026-5908, CVE-2026-5907, CVE-2026-5906, CVE-2026-5904, CVE-2026-5903, CVE-2026-5902, CVE-2026-5901, CVE-2026-5900, CVE-2026-5899, CVE-2026-5898, CVE-2026-5897, CVE-2026-5896, CVE-2026-5895, CVE-2026-5894, CVE-2026-5893, CVE-2026-5892, CVE-2026-5891, CVE-2026-5890, CVE-2026-5889, CVE-2026-5888, CVE-2026-5887, CVE-2026-5885, CVE-2026-5884, CVE-2026-5883, CVE-2026-5882, CVE-2026-5881, CVE-2026-5880, CVE-2026-5878, CVE-2026-5877, CVE-2026-5876, CVE-2026-5875, CVE-2026-5874, CVE-2026-5873, CVE-2026-5872, CVE-2026-5871, CVE-2026-5870, CVE-2026-5869, CVE-2026-5867, CVE-2026-5866, CVE-2026-5865, CVE-2026-5864, CVE-2026-5863, CVE-2026-5862, CVE-2026-5861, CVE-2026-5860, CVE-2026-5859, CVE-2026-5858, CVE-2026-5292, CVE-2026-5291, CVE-2026-5290, CVE-2026-5289, CVE-2026-5288, CVE-2026-5287, CVE-2026-5286, CVE-2026-5285, CVE-2026-5284, CVE-2026-5283, CVE-2026-5282, CVE-2026-5281, CVE-2026-5280, CVE-2026-5279, CVE-2026-5278, CVE-2026-5277, CVE-2026-5276, CVE-2026-5275, CVE-2026-5274, CVE-2026-5273, CVE-2026-5272, CVE-2026-4867, CVE-2026-4800, CVE-2026-4680, CVE-2026-4679, CVE-2026-4678, CVE-2026-4677, CVE-2026-4676, CVE-2026-4675, CVE-2026-4674, CVE-2026-4673, CVE-2026-4464, CVE-2026-4463, CVE-2026-4462, CVE-2026-4461, CVE-2026-4460, CVE-2026-4459, CVE-2026-4458, CVE-2026-4457, CVE-2026-4456, CVE-2026-4455, CVE-2026-4454, CVE-2026-4451, CVE-2026-4450, CVE-2026-4449, CVE-2026-4448, CVE-2026-4447, CVE-2026-4446, CVE-2026-4445, CVE-2026-4444, CVE-2026-4443, CVE-2026-4442, CVE-2026-4441, CVE-2026-4440, CVE-2026-4439, CVE-2026-4111, CVE-2026-3942, CVE-2026-3941, CVE-2026-3940, CVE-2026-3939, CVE-2026-3938, CVE-2026-3937, CVE-2026-3936, CVE-2026-3935, CVE-2026-3934, CVE-2026-3932, CVE-2026-3931, CVE-2026-3930, CVE-2026-3928, CVE-2026-3927, CVE-2026-3926, CVE-2026-3925, CVE-2026-3924, CVE-2026-3923, CVE-2026-3922, CVE-2026-3921, CVE-2026-3920, CVE-2026-3919, CVE-2026-3918, CVE-2026-3917, CVE-2026-3916, CVE-2026-3915, CVE-2026-3914, CVE-2026-3913, CVE-2026-3910, CVE-2026-3909, CVE-2026-3545, CVE-2026-3544, CVE-2026-3543, CVE-2026-3542, CVE-2026-3541, CVE-2026-3540, CVE-2026-3536, CVE-2026-3520, CVE-2026-3304, CVE-2026-3085, CVE-2026-3083, CVE-2026-3082, CVE-2026-2950, CVE-2026-2923, CVE-2026-2922, CVE-2026-2921, CVE-2026-2920, CVE-2026-2581, CVE-2026-2359, CVE-2026-2229, CVE-2026-1528, CVE-2026-1527, CVE-2026-1526, CVE-2026-1525, CVE-2026-1519, CVE-2026-1299, CVE-2026-0915, CVE-2026-0865, CVE-2026-0861

CVE-2025-69421, CVE-2025-69420, CVE-2025-69419, CVE-2025-69418, CVE-2025-68160, CVE-2025-66614, CVE-2025-66199, CVE-2025-62718, CVE-2025-58190, CVE-2025-52565, CVE-2025-48431, CVE-2025-47911, CVE-2025-47907, CVE-2025-47906, CVE-2025-31133, CVE-2025-30204, CVE-2025-22874, CVE-2025-22872, CVE-2025-22871, CVE-2025-22870, CVE-2025-22869, CVE-2025-22868, CVE-2025-22866, CVE-2025-15469, CVE-2025-15468, CVE-2025-15467, CVE-2025-15367, CVE-2025-15366, CVE-2025-15281, CVE-2025-14831, CVE-2025-14104, CVE-2025-14010, CVE-2025-13601, CVE-2025-13281, CVE-2025-11187, CVE-2025-10158, CVE-2025-9820, CVE-2025-9086, CVE-2025-6176, CVE-2025-5187, CVE-2025-4673, CVE-2025-1767, CVE-2025-0913, CVE-2025-0426

CVE-2024-47081, CVE-2024-45341, CVE-2024-45338, CVE-2024-45336, CVE-2024-35195, CVE-2024-34158, CVE-2024-34156, CVE-2024-34155, CVE-2024-11079, CVE-2024-9902, CVE-2024-9042, CVE-2024-8775, CVE-2024-0690

CVE-2023-40403, CVE-2023-5764, CVE-2023-5115

CVE-2022-3697

CVE-2021-20228, CVE-2021-20191, CVE-2021-20180, CVE-2021-20178, CVE-2021-3620, CVE-2021-3583

CVE-2020-25635, CVE-2020-14365, CVE-2020-14332, CVE-2020-14330, CVE-2020-10744, CVE-2020-1735, CVE-2020-1734

Deprecated models

The following models are deprecated in this release:

Deprecated models remain functional until their removal date but may display removal notifications in the UI. Switch to supported models before removal to avoid disruption. Recommended model is openai/gpt-oss-120b.

ibm/ibm-granite-8b-unified-api-model-v2
ibm/granite-3-8b-instruct
meta-llama/llama-3-1-70b-instruct
meta-llama/llama-3-3-70b-instruct