[//]:content-type-MARKDOWN-DONOT-DELETE Gate Learn has released 15 new articles this week ! In the realm of blockchain technology, explore the leading blockchain gaming enterprise [OASYS](https://www.gate.io/learn/articles/what-is-oasys/691 "OASYS"), enabling developers to construct solutions using programming languages like C# and .NET, [Beldex](https://www.gate.io/learn/articles/what-is-beldex/685 "Beldex"), built upon the Monero codebase and utilizing features like RingCT, aims to safeguard transaction privacy. [Stratis](https://www.gate.io/learn/articles/what-is-strats/686 "Stratis"), which fosters solution-building through community-driven decisions, [Snowbank](https://www.gate.io/learn/articles/what-is-snowbank/684 "Snowbank"), empowering users through community-driven decisions, the interoperability-focused and decentralized [Serum](https://www.gate.io/learn/articles/what-is-serum-nextwork/683 "Serum"), and the [TRC-20 wallet](https://www.gate.io/learn/articles/what-is-the-trc20-wallet/681 "TRC-20 wallet") offering services like asset storage, address management, and DApp connectivity. Dive into understanding how [account abstraction](https://www.gate.io/learn/articles/what-is-account-abstraction-and-how-does-it-work/679 "account abstraction") forms programmable smart contracts by combining contract accounts and externally owned accounts (EOAs). The project introductions encompass the [Brave](https://www.gate.io/learn/articles/what-is-brave/678 "Brave") browser, dedicated to expanding web3 access, the cryptocurrency [Nano](https://www.gate.io/learn/articles/what-is-nano/682 "Nano"), renowned for its rapid, feeless, and scalable transactions, and Bitcoin Improvement Proposals that upgrade or optimize the [Bitcoin protocol](https://www.gate.io/learn/articles/what-is-a-bitcoin-improvement-proposal/687 "Bitcoin protocol"). In the trading knowledge section, explore the use of [stop-limit orders](https://www.gate.io/learn/articles/what-is-a-stop-limit-order/688 "stop-limit orders"), combining the features of stop-loss and limit orders, during [bear markets](https://www.gate.io/learn/articles/what-is-a-bear-market/690 "bear markets") when prices are generally falling in the stock market. Lastly, discover [NFT white-listing](https://www.gate.io/learn/articles/what-is-an-nft-whitelist/689 "NFT white-listing") for investors to get early access to their most coveted NFTs, and [StaFi](https://www.gate.io/learn/articles/what-is-stafi/680 "StaFi") in the DeFi space, aiming to address liquidity issues related to staking.