All streams

The November commitfest is ripe with new interesting features! Without further ado, let's proceed with the review.

If you missed our July and September commitfest reviews, you can check them out here: 2023-07, 2023-09.

ON LOGIN trigger
Event triggers for REINDEX
ALTER OPERATOR: commutator, negator, hashes, merges
pg_dump --filter=dump.txt
psql: displaying default privileges
pg_stat_statements: track statement entry timestamps and reset min/max statistics
pg_stat_checkpointer: checkpointer process statistics
pg_stats: statistics for range type columns
Planner: exclusion of unnecessary table self-joins
Planner: materialized CTE statistics
Planner: accessing a table with multiple clauses
Index range scan optimization
dblink, postgres_fdw: detailed wait events
Logical replication: migration of replication slots during publisher upgrade
Replication slot use log
Unicode: new information functions
New function: xmltext
AT LOCAL support
Infinite intervals
ALTER SYSTEM with unrecognized custom parameters
Building the server from source

The Flashforge Creator 3 is a hallmark of innovation in the bustling world of 3D printing. This versatile printer is known for its dual extruder system, precision, and user-friendly interface, catering to the needs of both enthusiasts and professionals.

If you’re a React developer, you know how important state management is. State is the data that powers your UI, making it interactive and dynamic. But managing state in React can be tricky, especially when you have to share it across multiple components or deal with complex and asynchronous logic.

That’s why over the years, React developers have come up with various solutions for state management, each with its own advantages and disadvantages. In this article, we’ll take a look at some of the most popular ones and how they evolved. We’ll also review some of the current state-management libraries and how to choose the best one for your app.

 Gleb Kulev, Candidate of Technical Sciences

The rapid exploration of outer space has faced a problem related to the insufficient efficiency of modern rocket engines. As a solution to this problem, the concept of a jet engine based on new operating principles is proposed, using a combination of known physical laws and having advantages over known types of jet engines.The article presents the results of testing three modifications of jet engines based on new operating principles and their analysis. The article discusses the physical principles of operation of a jet engine based on new principles, its advantages and problems arising during its creation.

The Flashforge Creator 3 Pro is a sophisticated 3D printer that has made waves in the desktop 3D printing market. It blends the boundary between professional and personal use, offering features usually found in industrial-grade printers. This machine is tailored for users who require precision, versatility, and the ability to work with advanced materials.

The Modix Big-120X is the latest iteration of Modix’s large-format 3D printer, renowned for its substantial build volume and advanced features, making it a competitive choice in the extra-large 3D printer market​​.

The Raise3D Pro3 3D Printer marks a significant stride in the world of professional 3D printing. As the latest innovation from a renowned brand, the Pro3 is anticipated to set new benchmarks in print quality, reliability, and user experience for both professionals and enthusiasts.

In the ever-evolving world of 3D printing, the Raise3D E2CF stands out as a beacon of innovation and versatility. Designed for both enthusiasts and professionals, this printer promises to revolutionize the way we approach 3D printing projects.

The Flashforge Guider 3 Plus emerges as a powerful player in the professional FDM 3D printing market. Developed by the Chinese-based manufacturer Flashforge, this model is designed to fulfill the rigorous demands of industrial applications. It distinguishes itself with an array of smart features that are indispensable for high-quality and efficient 3D printing​​​​.

Easy Marlin installation on STM32 debug board

Confusion over bootloaders

Here’s a brief historical and technical overview to help you understand what a bootloader is, why you need it, and what it has to do with Marlin and STM32.

3D scanning technology has witnessed remarkable advancements, and at the forefront of this evolution is the FreeScan UE Pro 3D Scanner. This revolutionary device has not only simplified the process of 3D scanning but also brought precision and efficiency to an unprecedented level. The FreeScan UE Pro stands out for its ability to capture intricate details, making it an invaluable tool across various industries, from engineering to healthcare.

The Einscan H 3D Scanner represents a significant leap in 3D imaging technology. Combining high efficiency with exceptional detail, this scanner has transformed various industry sectors, from manufacturing to education. In this comprehensive guide, we'll delve into the nuances of the Einscan H, exploring its features, applications, and how it stands out in the market.

3D scanning technology has revolutionized various industries, from manufacturing to healthcare. This article delves into the evolution of 3D scanning, highlighting its significance in today's technology-driven world. We will explore how 3D scanners, like the Einscan Pro 2X 2020, have become essential tools in diverse sectors

UX testing is one of the most important parts of the UX design creation process for any software product. It helps to understand whether users are satisfied with the design and highlights its problematic areas that need to be fixed or improved. UX testing is an important part of the whole testing process - it helps to get beta-testers feedback to determine whether the product is comfortable for users and gives opportunity to improve problems and issues before moving on to the next stage of the development process. It also contributes to reducing the cost of development, as it is much cheaper to fix issues during the development process rather than after the release. Listed down below are 5 simple tips that can help perform UX testing in a proper and effective way.

The FlashForge Guider 3 stands as a beacon of innovation in the vast sea of desktop 3D printers. Tailored for both the enthusiastic hobbyist and the dedicated professional, this printer serves as a gateway to transforming imagination into tangible reality. With its robust build volume, exceptional layer resolution, and user-friendly interface, the Guider 3 is designed to deliver high-quality prints consistently. Beyond its technical prowess, this machine embodies the evolution of 3D printing technology, offering a level of accessibility and efficiency that was once the domain of industrial-grade printers. In this introduction, we will delve into what makes the FlashForge Guider 3 a standout choice for those looking to push the boundaries of personal manufacturing and design.

Hello, fellow front-end developers! Imagine a tool that’s not about punching in commands but a gateway to a world of coding artistry. That’s what the macOS Terminal became for me at Luxoft. 

Welcome to the world where creativity meets cutting-edge technology – introducing the Flashforge Creator 4-S 3D Printer, a marvel of modern engineering designed to bring your ideas to life with precision and flair. This section will guide you through the initial encounter with the Creator 4-S, from the moment of unboxing to exploring its vast array of features and capabilities.

In this article, I will guide you through the process of creating a frosted AppBar with a sliding element beneath it. The final result is presented at the top as it works in the media network application.

Continuous socket connection can be crucial to ensure correct app behavior. Whether it’s delivering real-time chat updates, stock prices, or in-app indicators, a reliable connection is vital.

One of the irritating problems with sockets is a sudden loss of connection. If the true cause is not visibly evident, i.e., unstable internet connection, then the disruption cause is often well hidden. To tackle this issue we can implement an automatic socket reconnection strategy. Let’s see what options we have in the industry-standard socket library for Dart — web_socket_channel.