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AWS DevOps Agent expands with custom SRE agents and MCP/A2A protocols - devamazonaws.blogspot.com

AWS DevOps Agent now supports custom SRE agents, bring-your-own sub-agents, and headless access via MCP and A2A protocols. These capabilities enable teams to automate recurring SRE workflows, extend DevOps Agent by connecting it to other agents, and access its capabilities from the tools they already use, including Kiro, Claude, and other coding assistants. With custom SRE agents, teams can create and schedule agents within Agent Spaces that run on a cadence. For example, create a daily database health report that checks for slow queries and parameters that need tuning, or build an agent that reviews logs from the past 24 hours and flags anomalies. In headless mode, developers can invoke DevOps Agent from the tools and agents they already use via A2A or MCP protocols. For example, the Kiro power for AWS DevOps Agent lets developers check production health and investigate issues without leaving their IDE. Teams can also connect their own sub-agents built with Amazon Bedrock or third-p...
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[MS] Make Visual Studio look the way you want - devamazonaws.blogspot.com

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Themes are personal. Some of us live in dark mode, some swear by high contrast, and some of us have very strong opinions about that one shade of blue from years ago. The new themes in Visual Studio 2026 are built on Fluent, which gives us a much more consistent and accessible foundation, but we have heard from plenty of you who want more control over specific colors. Accent colors, hover states, the line between the shell and the tab headers… the small things that make an IDE feel like yours . So, we did something about it. Visual Studio now has a new Theme colors options page that lets you customize any Fluent color token directly inside the IDE. No extensions, no JSON files to hunt down, no restarts. Just open the page, find the token you want, and pick a new color. Where to find it Open it from Tools > Options > Environment > Visual Experience > Theme colors . You'll see every Fluent color token in the active theme listed in a searchable grid. Pick one, change ...
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[MS] How can I schedule work on a thread pool with low latency? - devamazonaws.blogspot.com

A customer had a callback that was used to report data being produced by a hardware device. The rule for the callback is that it has to return quickly so that the code wouldn't miss the next batch of data because the device itself has a very small buffer: If they spend too much time in the callback, the buffer will overflow and data will be lost. To avoid clogging the receiving thread, the customer queued a work item to the thread pool to process the data that was just received. However, they found that sometimes, the work item doesn't run immediately but rather has a 100ms latency. But their program needs to process the data within 20ms. Is there a way to set a deadline on a thread pool work item, so that the system will make sure that it runs before a certain period of time elapses? As I've noted before, the thread pool is designed for throughput, not latency . There is no option to set a deadline on a work item. One reason why the thread pool is being slow to dispatc...
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Amazon Lightsail is now available in three additional AWS Regions - devamazonaws.blogspot.com

Starting today, Amazon Lightsail is available in three additional AWS Regions: Asia Pacific (Hong Kong), South America (São Paulo), and Europe (Spain). This expansion brings the power and simplicity of Lightsail to customers across new geographies in Asia, South America, and Europe. With this launch, customers in these geographical regions can now enjoy lower latency and better performance for their applications while meeting local data residency requirements. The new Regions provide access to Lightsail's full range of features including instances that meet your compute needs, from general purpose to compute-optimized and memory-optimized bundles, as well as managed databases, container services, load balancers, and more , all with the same simple, predictable pricing that Lightsail customers love. Startups, small businesses, and developers in these regions can now run their applications closer to their end users with low latency. Lightsail is available in these AWS Regions: US...
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[MS] Understanding the rationale behind a rule when trying to circumvent it - devamazonaws.blogspot.com

In the documentation for best practices for implementing process and thread-related callback functions , it calls out Keep routines short and simple. Don't make calls into a user mode service to validate the process, thread, or image. Don't make registry calls. Don't make blocking and/or Interprocess Communication (IPC) function calls. Don't synchronize with other threads because it can lead to reentrancy deadlocks. So far so good. It seems that these callback functions need to operate quickly and cannot block. These are callbacks that are invoked when a process starts or exits, when a thread starts or exits, when a DLL or EXE is loaded or unloaded, and various other low-level events. The various prohibitions above suggest that these callouts are called during the process creation/termination sequence, so if you take a long time to deal with them, you are slowing down the entire system. And the rather extreme requirements, like "Don't make...
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Amazon Managed Service for Prometheus now supports Native Histograms - devamazonaws.blogspot.com

Amazon Managed Service for Prometheus now supports ingestion, storage, and querying of Prometheus native histograms, enabling customers to capture high-resolution metric distributions with greater precision and lower cardinality than classic histograms. DevOps engineers, site reliability engineers, and platform teams monitoring latency, request durations, and other distributions can now get more accurate percentile calculations without pre-defining bucket boundaries or managing high-cardinality time series. Native histograms use exponential bucketing to automatically adapt resolution to your data, storing an entire distribution in a single time series rather than requiring one series per bucket boundary. This reduces active series count, as a classic histogram with 20 buckets that previously required 22 time series now requires only one, while delivering more precise tail-latency insights from functions like histogram_quantile(). You can adopt native histograms incrementally alongsi...
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OpenAI GPT-5.4 and GPT-5.5 models now available in US East (N. Virginia) on Amazon Bedrock - devamazonaws.blogspot.com

Today, AWS announces the expanded availability of OpenAI's GPT-5.4 and GPT-5.5 models, which are now available in the US East (N. Virginia) Region on Amazon Bedrock. With GPT-5.4 and GPT-5.5, you can build generative AI applications across reasoning, coding, computer use, document workflows, and long-running agentic tasks. GPT-5.5 is OpenAI's most capable model, designed for advanced coding, research, analysis, software operation, document workflows, and long-running agentic tasks. It can understand open-ended goals, use tools, reason across longer workflows, navigate ambiguity, and carry complex tasks through to completion with less orchestration. GPT-5.4 brings frontier reasoning, coding, computer use, long-context workflows, and tool use to production applications that interpret context, interact with tools, operate software environments, and verify outputs across multiple steps. Both models support a 272K-token context window, accept text and image input, and are availabl...
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