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Tech Optimizer

November 27, 2025

How Letta builds production-ready AI agents with Amazon Aurora PostgreSQL

AI agents benefit from persistent memory, enabling them to recall past interactions and maintain context, which enhances customer experience in scenarios like customer service. The Letta Developer Platform allows developers to create stateful agents with advanced context management features. It supports self-hosting within a virtual private cloud and uses Amazon Aurora PostgreSQL for long-term memory storage. Aurora PostgreSQL offers capabilities such as efficient similarity searches with the pgvector extension, sub-second query latency, and dynamic storage scaling. Letta operates as a persistent service, allowing agents to function independently and scale horizontally using Kubernetes. The platform supports multi-tenancy and includes enterprise features for security and monitoring. To set up an Aurora Serverless cluster for Letta, users must create a database on Amazon RDS, configure security group access, and install the pgvector extension. Letta connects to Aurora using a PostgreSQL connection string. After establishing the connection, users can create agents, send messages, and view agent states and conversation histories stored in Aurora. Letta organizes data in 42 tables, including those for agents, messages, and memory blocks. Users can explore the database schema and examine the structure of stored messages and embeddings. Finally, it is recommended to delete the Aurora cluster and associated resources after completing the integration to avoid charges.

Winsage

November 26, 2025

Windows 11’s Notepad gets support for tables and bolstered AI powers – and not everyone’s happy

Microsoft is enhancing the Notepad application in Windows 11 with new features, including the ability to create tables and AI-driven text creation and rewriting capabilities. The latest preview is available to testers in the Canary and Dev Channels. The AI features allow real-time text generation but require devices with Copilot+ technology and a Microsoft account for access. There are concerns about Notepad becoming bloated and losing its minimalist design as it integrates more functionalities, especially following the planned discontinuation of WordPad in 2024, which may position Notepad as a more robust alternative for document creation.

Tech Optimizer

November 25, 2025

Protect sensitive data with dynamic data masking for Amazon Aurora PostgreSQL

Amazon Aurora PostgreSQL-Compatible Edition has introduced a dynamic data masking feature that provides column-level protection, enhancing security alongside PostgreSQL’s row-level security. This feature is available for Aurora PostgreSQL versions 16.10 and higher, as well as 17.6. Dynamic data masking allows organizations to maintain a single copy of their data while applying role-based access controls, ensuring sensitive information is protected in real-time without data duplication. The pg_columnmask extension enables policy-based masking and runtime query rewriting, allowing different users to see varying levels of data based on their roles. For example, customer service representatives may see only the last four digits of account numbers, while executives see full details. The feature supports compliance with regulations such as GDPR, HIPAA, and PCI DSS. Users can create masking policies using standard SQL commands, and the policies can be defined to utilize built-in or custom functions for data masking.

Winsage

November 24, 2025

Microsoft’s Notepad; The Best Advertisement For Notepad++ There is

Notepad has transformed from a simple text editor into a more complex tool integrated with Microsoft accounts and AI features, which many users find unfavorable. The decision to phase out Wordpad has left users seeking alternatives. Notepad++ offers a customizable experience that allows users to add features selectively, catering to those who prefer simplicity. The changes to Notepad have led to increased frustration among users who valued its original straightforward functionality.

Tech Optimizer

November 20, 2025

How to implement Dynamic SQL in PostgreSQL 10

Dynamic SQL in PostgreSQL allows developers to streamline querying processes and reduce repetitive tasks. It is implemented using the EXECUTE statement, which evaluates a string input. Dynamic SQL can be used for executing DDL statements, such as analyzing tables within a schema, and for DML statements, enabling interactive data manipulation, like filtering results in a billing application. PL/pgSQL caching can lead to inefficiencies in dynamic SQL scenarios where execution plans vary. Security risks, particularly SQL injection vulnerabilities, are associated with dynamic SQL. Recommended practices to mitigate these risks include using the USING clause for parameterized statements, employing the format function for query construction, and utilizing functions like quote_ident() and quote_literal() for proper formatting.

Winsage

October 18, 2025

Windows 10 Is Retiring—What’s Next for Windows 11?

Microsoft is transitioning from Windows 10 to a future that integrates artificial intelligence into Windows 11 through its Copilot feature. The company aims to create a computing environment where PCs can understand commands and engage in conversations, handling tasks like organizing photos and troubleshooting. Copilot will include enhanced capabilities called "Vision" and "Voice," allowing users to interact with their devices through voice commands. This new approach positions voice as a third input method alongside keyboard and mouse. Copilot Actions will enable the AI to perform local tasks on PCs securely. Microsoft is launching an advertising campaign to reshape user perceptions of personal computing as a collaborative partner.

TrendTechie

October 18, 2025

Ради игр с торрентов геймеры сверлили Xbox и вставляли пинцет в Nintendo Wii. Самые необычные способы пиратства на консолях

Many methods of console piracy have emerged over time, often exploiting unintentional vulnerabilities in licensed games. For example, the PSP was easily hacked due to flaws in games like Grand Theft Auto: Liberty City Stories and Medal of Honor: Heroes, which allowed users to manipulate save files to gain access to the system. A debug code in Alien: Resurrection for the PS1 enabled users to swap discs without turning off the console. Various makeshift tools have been used for hacking, such as a paperclip to exploit the Nintendo Switch and tweezers to access dormant memory sections in the Wii. The Nintendo 3DS was hacked using a magnet to trick the lid sensor, allowing access to developer mode. The Xbox 360 faced significant modding due to its firmware modification capabilities. A notable method involved drilling into the drive to bypass rewrite protection, known as the "Kamikaze Hack." While piracy methods have evolved, modern consoles have become increasingly secure, with fewer successful hacks reported in recent years. The appeal of piracy has diminished as subscription services and sales provide easier access to games.

Winsage

October 18, 2025

New Windows GDI Rust Kernel Vulnerability Triggers Remote Code Execution

Security researchers identified a vulnerability in the Rust-based Windows kernel component, specifically within the Windows Graphics Device Interface (GDI), which can be triggered remotely and cause system-wide crashes. The flaw was linked to the win32kbase_rs.sys kernel driver, resulting from an out-of-bounds memory access while processing a malformed path in an EmfPlusDrawBeziers record. This vulnerability represents a denial-of-service risk, allowing a malicious actor to crash systems by embedding a harmful metafile in documents or webpages. It affects both x86 and x64 systems running Windows 11 version 24H2, with a single compromised low-privilege account capable of causing widespread crashes. Microsoft released a fix in the May 28, 2025, preview update (KB5058499), which included a new bounds-hardened routine, but initial testing showed that the feature flag for this fix was disabled, delaying full mitigation until July 2025 Patch Tuesday.

Tech Optimizer

October 14, 2025

‘Polymorphic malware’: The new headache for cops and users

Polymorphic malware disguises itself as benign software and is deployed through phishing emails, deceptive downloads, and malicious links. It alters its code immediately upon activation to evade antivirus detection, encrypting its code and injecting extraneous lines to confuse security systems. Once embedded, it activates key logging tools to capture sensitive information like passwords and credit card numbers, and may redirect users to counterfeit banking websites. Polymorphic malware spreads within networks, altering its structure with each transfer, and some variants operate as 'fileless malware,' complicating removal. It often erases its tracks or self-destructs before detection, making proactive user caution essential to defense.

Winsage

October 12, 2025

Windows 11 will soon support dark mode for Run dialog box

Windows 11 Build 26120.6780 (KB5067103) was released on October 10, 2023, to Beta Channel testers, integrating dark mode into the Run dialog for the first time. Users can now experience the Run dialog in dark mode, featuring a deep black top border and a gentle grey interface. Dark mode enhancements have also been extended to other components, including the file transfer dialog, confirmation prompts for file deletions, and the Recycle Bin's delete confirmation. Microsoft is not rewriting these legacy dialogs in modern frameworks like XAML or WinUI due to performance concerns. The Control Panel and its applets have not yet adopted dark mode, and updating all dialog boxes remains challenging due to the nature of Win32 UI. Additionally, the update includes improvements to the Settings app for Copilot+ PCs, introducing agentic actions that allow for quick adjustments to recently modified settings. However, these features are not available for users without a Copilot+ PC.